Windows Support Forum

Lost drive letter (H:)

Q: Lost drive letter (H:)

as of turning on my laptop today the drive letter previously H has gone It is an iomega TB external hard drive i have Sony Vaio Lap Lost letter (H:) drive top I also have an Acer both work but neither will recognise the drive That Lost drive letter (H:) is to say they will not show H i have nothing else connected to the pc at the moment bcz i have disconnecter everything to get back to basic setup Both pcs know the drive is there when i connect it divice manager tell me i have it there Speccy tells me it is there it even tells me the capacity and that it is actually a samsung HD si usb divice but i cannot open the drive bcs the drive letter is gone there is nothing to click on C is there and any number of flash drives i care to plug in are recognised and assigned a drive letter imediatly but not the external hard drive I formatted it bcz it was getting too full of junk so i moved the stuff i wanted to the sony formatted the iomega normal NTFC format restore defaults etc but it seem like the pc got carried away amp removed even the drive letter what can i do to reclaim it

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Preferred Solution: Lost drive letter (H:)

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I've used it in the past to identify and fix everything from blue screens (BSOD's), ActiveX errors, corrupt files and processes, dll/exe/sys errors, recover lost memory, Windows update problems, defragging, malware removal etc.

You can download it direct from this link (This link will automatically start a download of Reimage that you can save to your computer.)

A: Lost drive letter (H:)

Go to drive management and.........
Try initializing the drive or adding the drive letter.
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Windows 2000. The drive letter (F on my 60 gig drive disapeared. The drive is blind to the system and all is unaccesable. Setup and Partition magic shows the drive to be there and operating. Can the drive be rescued?

A:Lost drive letter

If you do not have TweakUI go HERE and get it. Once you install it you will find a number of useful features. Among these are the ability to hide individual drives (under the "My Computer" tab). This option may have been set by some other method. See if TweakUI will let you un-set it.
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Hi Everything was fine with my system until I was playing a game and the computer froze I thought no big deal since this sometimes happens I tried Lost drive letter plus CD-burner to alt delete tab but got nothing so I ended up turning the power off When it was rebooting I got a message that said Drive not Lost CD-burner plus drive letter found Parallel ATA PATA- CR IDE Slave Strike the F key to continue F to run the set-up utlity I went ahead and used F and I had lost my F Drive for my external hard drive I ended up unpluging its USB and reinstalling than that worked right and it recongnized it as the right F drive Now unfortunately I ve lost my E drive which was my CD-burner I dont know if I lost both F and E at same time I dont even see it in the Device Manager or quot my computer quot I opened up case just to make sure CD-burner came undone somehow Naturally the connections were fine My hard drive C and DVD player D show up and work I suspect somehow my Ext HD stole the E letter somehow I m using windows XP GHz GB Memory I m fairly basic when it comes to computers so let me know if you need any info Thanks in advance for any help nbsp

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I Lost Defrag Letter Primary Drive After am running a PC with a Windows upgrade on top of Windows Have had the system for three years without major incident The Primary partition C NTFS meg is used for the OS and programs and D FAT meg for data I also have an external HD for Back Ups and a Dell Inspirion laptop running XP Lost Primary Drive Letter After Defrag I recently defragged my PC hard drive When I rebooted I received the BSOD Stop x B screen and INACCESSIBLE BOOT DEVICE message I rebooted using a Windows boot diskette and was surprised to find that the Drive C it saw was my former Drive D my former Primary Drive had seemingly disappeared Later I learned that DOS cannot see an NTFS partition fdisk SYSTEM command provided the following report Disk Drv Mbytes Free Usage C The Drv C that is reported is actually my original Drive D which is the second partition on the Disk I then rebooted using a W K SP Boot CD It identified my Primary Drive C and the Windows installation and left me with a cursor at C WINNT A simple CHKDSK reported CHKDSK found one or more errors on the volume kilobytes total disk space kilobytes are available bytes in each allocation unit total allocation units on disk allocation units available on disk After a CHKDSK r the report was CHKDSK found no errors on the volume kilobytes total disk space kilobytes available bytes in each allocation unit total allocation units on disk allocation units available on disk Obviously CHKDSK had repaired some files Unfortunately when I rebooted from the hard drive I again received the same BSOD but with additional parameters namely Stop x B xEB B C xC E x x screen and INACCESSIBLE BOOT DEVICE message I am not in any great panic since my last data backup on the External HD is only about six weeks old and interestingly enough I can access it from my PC Therefore I can DOS Copy any updated important files to the External HD and carry on life with my laptop and External HD HOWEVER I would like to get my PC back in operation and would appreciate any suggestions as to my next step to recovery nbsp

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I switch on my computer typically as every morning. This time I lost my extended WD Passport 80 MB. No letter drive.

I check in Device Manager. Disk is recognize, but shows
Type - Unknown
Status - Unreadable
Partition Style - Not Applicable
Capacity - 0 MB
Unallocated Space - 0 MB
Reserved Space - 0 MB

Looks like a Master Boot Records gone. Addictionaly it shows me FAT 12 .

I have no idea what's happened.

When drive starts make it sounds like a "turn few times". I didn't hear it before. Is it mechanically corrupted, or just lost partitions ?

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My system will not boot. It gets as far as the Windows XP logo with the 'busy bar' going back and forth, hangs for a while, and then reiterates the entire reboot process. Starting in Safe Mode reveals a hang at MUP.DLL.

The Windows XP Setup program does not recognize the partition as being NTFS formated (my 160GB hdd has two partitions, the second one is ok).

I booted Partition Magic from a bootable CD and discovered that the primary partition has no drive letter allocated to it.

How can I restore drive letter C without erasing the entire operating system?

Many tanks to everyone has a solution

A:Drive letter designation (C:) on my primary partition has been lost

If you have the windows xp cd, boot from it and go into the recovery console. Go here ---> Recovery Console For more information. Once there in the recovery console type this command Fixboot "this Writes a new boot sector to a selected partition." then type Fixmbr this will Repair the Master Boot Record (MBR). Restart the computer.
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I am using Vista Home Premium I have GB HD which is partitioned into parts One is C Second one was D I had dual assign Unable partition lost. letter NTFS drive to boot enabled with OpenSuSE running in it which I removed yesterday All was fine and I was able to boot just with Windows without Grub boot loader In Disk management application I could see the partition - where SuSE was there earlier as Free Space C drive is GB D drive is GB Both are NTFS and Free space is GB So far so good Then instead of trying to create a new Drive partition in the GB Free space I tried to extend the existing D Drive using PartitionMagic and somewhere in the process I lost my D Drive I NTFS partition drive letter lost. Unable to assign can no longer see D Drive in my Explorer Currently I can still see old D drive as a partition in blue color in Disk management software indicating that it is a Primary partition But I am not able to assign any Drive letter to it Diska Management app does not show me the properties for this partition I get this error quot Operation failed to complete because the Disk management console view is not up-to-date Refresh the view by using refresh task If the problem persists close the Disk Manage ent console and then restart Disk Management or restart computer quot Restarting did not help Third party tools like Active UnEraser etc are able to detect this partition as NTFS and also able to find all the files in this So I am assuming by data is in there still Something gone bad with Partition Table or Volume Table or some such I don't clearly understand the disctinction between Volumes and Partitions esp when everything is in the same Physical Disk Help me -Sekhar

A:NTFS partition drive letter lost. Unable to assign

Hi Sekhar, It sounds as if it doesn't matter about the files on D:\ now if I understand you correctly- that was where you had Suse installed. It also seems you can still boot and run Vista.

So it seems that you just need to clean up the partition table.

You can try this free tool (recommended) - which supports partition table recovery-
Magic Server Partition Manager Software - Resize partition for Windows Server 2003, 2008 and 2000.
- bootable CD here
Partition Wizard Bootable CD allows user to boot computer directly to manage partition.
or Easeus partition master (home)
Best FREE Partition Manager Freeware for Windows 2000/XP/Vista/Windows 7. EASEUS free Partition Manager Software Home Edition.
- no bootable disk with free edition

In the past I've found [email protected] Partition Recovery useful in difficult circumstances.

Good luck. dal987
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After researching my issue and found this closed thread - quot Windows won t read drive in explorer quot I started my own little research to my problem First some basics I am running Windows Ultimate bit I have SATA Hard Drives one Recovery drive letter on my lost Healthy (Active, Partition) with OS SATA DVD and Blu-Ray Drives and IDE Hard Drive which lost my drive letter on Healthy (Active, Recovery Partition) is configured as a slave lost my drive letter on Healthy (Active, Recovery Partition) Second - I needed to do some hard drive trouble shooting for another computer that had a possibly dead IDE Hard Drive To do this I shut down my computer and attached the supposedly dead IDE Hard Drive in its place Now lost my drive letter on Healthy (Active, Recovery Partition) - all the trouble began After booting into the Bios I noticed the supposedly dead hard drive did not register even though it was spinning I kept booting into the OS to see if it would be recognized in any case - it was not I put my working IDE Hard Drive back in - after shutting down and removing the dead IDE Hard Drive I booted back into the BIOS and noticed my good IDE Hard Drive wasn t being recognized either I then went into advanced Bios settings and walla - it saw my hard drive but said I needed to reboot After rebooting I noticed the same thing with the Bios but this time proceeded to boot into the OS After signing on I noticed my Good Hard Drive was no longer recognized in Explorer I went into Administrator and Computer Management and then into Disk Management What I saw puzzled me as over the past years I never have seen this My good hard drive was showing up as Disk and showed the partitions The only option I was allowed was quot help quot or I could change to a Dynamic disc I immediately stopped as any further action and I knew I would destroy my data I booted and investigated several times to see if this bug would work itself out - it did not Now I began to worry because I did not back up my important files STUPID I KNOW for over a week I read everyone s posts in a frenzy as I am sure everyone has experienced this panic mode I realized I did not do anything dumb with my hardware and I could only think of all the updates Windows does every damn single night as I shut down my computer - ugh - how freakin annoying yes I know I can change that setting I then decided to try something I restored my system to a restore point of several days ago BAM My Hard Drive came back - woohoo I stepped away to have a quick lunch thinking I just saved my times over and said I would not do anything until I backed everything up Well - of course Windows being what it is while I was away for minutes or so my computer decided to do an auto update and reboot And as you might be thinking right now is that - yes - it did - lost my hard drive again Okay - so now I m not sure if my hard drive is going bad - it could be going intermittent on me - or if Windows is updating some driver causing this to happen So I did another restore from the same point as I first did - OMG - it did not work Frenzy time again I then got down on my knees and prayed quot Dear Lord - if I go back one more restore point and this works - do not leave the computer and back up the files immediately quot YES It came back Without flinching I immediately went into Explorer and copied the entire hard drive to another SATA working hard drive While copying I went back into Administrator and Computer Management and then into Disk Management and noticed that it was still not recognizing my hard drive with a letter even though it is seeing it in Explorer - wow - As I type this I am not doing another dag nabbed thing until I finish getting all my data off In final It could be a problem with my motherboard - it could be my hard drive dying - it could be Windows Bottom line - BACK Up BACK Up BACK UP Oh - and don t do a diagnostic for another computer s problems even if it s my work computer - that I tried fixing at hom... Read more

A:lost my drive letter on Healthy (Active, Recovery Partition)

Go into control panel and change windows update settings
to something other than automatic,like download and notify.
That way you have a choice what to install.
Then run windows update manually.
Check the list of updates for a drive controller driver.
It sounds like it is installing one that isn't working for you.
It would probably be under optional updates.
You should be able to select hide update an click ok
so it won't try to install it anymore.
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I assign greyed Paths... Change drive letter. out. and Can't Drive Letter have a drive that has a lot of information on it that I need A user left our company and all of his files are on this drive I was handed it and asked to build a VM with all his information on it When I plug the drive in it loads the drivers and shows up just fine Change Drive Letter and Paths... greyed out. Can't assign drive letter. in Computer Management shown below but not in Computer So I think ok I'll just add a drive letter but that option is greyed out and won't let me The disk Change Drive Letter and Paths... greyed out. Can't assign drive letter. is initialized and appears to be healthy I have gone to device manager and made sure there were no problems there as well It was also an external drive so I removed it and made it an internal drive on my machine but got the same results It shows up in BIOS but obviously can't boot off of it since it is not an OS drive Deleting formatting the drive is not an option Is there a way to get this drive accessible without that Deleting it is the exact opposite of what I want done here nbsp Thanks

A:Change Drive Letter and Paths... greyed out. Can't assign drive letter.

That looks like a mac formatted drive, that's why it wont work on your PC. Try installing Paragon HFS+ for Windows.
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i have windows 7 desktop. there are some partition on it.but there is problem with these partition. All the three partition have the same drive letter.i attach a link showing the picture. all three partitions are dynamic , simple. if i open these drives only the contents of one drive are appeared. another two drive data are not shown in any manner.

i don't want to lose any data from any drive ......
please help me sir...
my windows is installed in c:\ drive which is also dynamic and there are no recent changes.only one change i did which is i shrink dynamic volume 50 GB from 206 GB and again mixed with 206 GB without allocating free space.

and only the c drive is on and d drive is off.but in my other desktop same configuration exist.
please help me...and please don't say change and remove drive letter...........waiting for response

A:changing one drive letter all 3 partitions change to that drive letter

First thing you're going to do is fill in the specs of the desktop whose snips you are showing us.

Then you're going to do the same with the second pc opening a second post with snips. Give it a different title like "Second pc with drive letters the same". Don't forget the snips.

You should not have dynamic disks in either machine. What did you do to accomplish this?

There exists a bevy of spectacular experts on this site that will be happy to help you. But give us ALL the info please.
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A:RAID 5 switched from single storage to raid 5, lost drive letter

It's possible the cd-rom/dvd drive assigned itself as d: before the new raid was created.
This should be solvable using the windows disk management tool if that's the case.
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A:Solved: renaming extended partition drive letter to another letter...plz help

Right click on My Computer . . select Manage . . then Disk Management . .

In Disk Management, right click on the Drive an select change letter assignment . .
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Hard disk (2) Was G: Now, show has a D:
CD drive was D: Now show has E:

G: appear had a "movable" drive

What can I do to replace all drive letter allocation has it use to be

Any info appreciated


A:modifying drive letter: Letter to choose not in the list

To find out why the preferred letter is not available. Type disk management in the search bar on the start menu and select "create and format hard disk partitions". Look to see if the letter you want to use is already in use. If it is you will have to change it first.

This link might be helpful.
How to change drive letters--even when the letter you want isn't available | PCWorld
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It won't allow me to rename the HD back into K: (it's not listed as available). I can access the data by clicking Computer > D, and I can see the data is there, but its unusable as of now. Any ideas?

A:Can't change hard drive letter to needed letter

Hello Stevie,

To be safe, you should create a restore point before doing this in case you make a mistake and need to use it to do a system restore.

1. If the K letter is not being used by another internal drive, then you can open regedit and navigate to:HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices
2. In the left pane, Take ownership (step 2 in Option Two of METHOD TWO) of the registry key MountedDevices and "Allow" yourself "Full Control" of it as well.

3. In the right pane of MountedDevices, right click on \DosDevices\K: and click on Delete and OK.

4. Restart the computer to apply. You should now be able to change the second hard drive letter to K.

Hope this helps,
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What can I do?


A:Want to Assign a drive letter to a partitioned device but the letter i

Do you have any USB storage devices like a card reader hooked up? Those would take up extra drive letters but not show up in Explorer until you put some media in.

I also notice you have disk drives C: and F: and a DVD drive on D: which makes me wonder where E: is...
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I do have a good relationship with my PC - just a bit strained at times.

A:Lost hdd id letter on sata hdd

Oh yes, two Primary Active HardDrives.

You should still see it in My Computer
Where you can right click on it and select Format...

Or just use a Windows CD to boot from and remove it from there
(I usually unplug the main one just to make sure that I don't remove the partition (and format) that)
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A:Lost partition letter and can't add it

You could try using DiskPart.

Click Start and type in "diskpart" if you have Windows Search enabled.

Right click the program and select Run as Administrator.

After this has loaded type in "listvolume" and hit Enter.

When you see the Partition you want to format, look at the number it has assigned for that partition.

Type "select volume 5", replace "5" with whatever number it gave you.

Finally, type select "assign letter J", replacing J with whatever letter you chose.
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A:Solved: If I can assign a drive letter, can I assign a folder letter?
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A:disk letter\labels changed and lost data problem

The removable disks will always find the most convinient drive letter available. As for the lost data it could be either accidental deletion or formating...
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A:External Hard Drive - Drive Letter changed - unable to change back


Welcome aboard.

Try this:

Download V 0.8.1 from

Drive Tools for Windows

Unzip to a folder. In it you will have two folders Win32 and x64, each containing DriveCleanup.exe for Windows 32bit and 64 bit respectively.

Now unplug all the USB devices from your PC (except of course the Keyboard and mouse), right click on the appropriate DriveCleanup.exe for your system and run it as an administrator.

This will remove all non-present drives from the registry.

Reboot and then plug-in your external drive.

The drive will be installed and hopefully you should be able to assign any free drive letter to it.

Please report whether it resolved your problem.
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Have just installed a new 8.7 Maxtor in a P100. This drive is set as master and partitioned into 5 which assigns drive letters c,d,e,f,g . If I re-install the old 500mb drive unit as a slave ( Quantum Maverick) it assigns itself as drive letter D. I want this drive to show up as drive H . If I go to Device manager, hard drives, double click on generic ide type 47, settings, for this drive the drive letter assignment is there, but I cannot change it. Any ideas please.

A:{SOLVED} Slave drive letter inserts itself within master partition drive letters

I don't think you can change it. Normally the bios will take the primary of the 1st ide drive as c, the primary of the second ide as d, the next partition of the primary ide drive as e, etc.
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Hi Bit of background first my old harddrive which was split into C and D approx gig each went Kaput had it replaced with an SSD at my request because I heard they to backup & causing drive problems letter external rename Drive Changes to don't overheat and are faster by an experienced computer technician and no longer having to deal with split drives suited me fine I only have half the storage space now about Gg in comparison to Gg but cost was a factor at the time SSD's being so expensive Very happy with the new SSD Changes to Drive letter & rename causing backup problems to external drive speed etc My operating system is Windows Home Changes to Drive letter & rename causing backup problems to external drive Premium bit SP My backups were all stored on a Goflex external harddrive which the technician accidentally dropped on the floor he then replaced this with an external drive with an on off switch Pleased about the Changes to Drive letter & rename causing backup problems to external drive on off switch the other didn't have one very upset about the dropping my other one All working fine doing my backups to my new external drive he gave me using my Acronis True Image software version that I had always used My old external drive was set up to drive E and all my previous backups in Acronis show drive E so perhaps this is why the technician set this new one up to Drive F not sure And maybe this is why I got the error message below Well in my infinite wisdom which with computer technology isn't great I must admit I suddenly decided I wanted to backup to an external drive with the letter E E for External seemed so much more practical to me just like before not F like now so I found out how to go and change the letter from F to E again and also the name of the drive I got a message after I changed the drive letter to E saying this might cause a problem with some files or something but I did it anyway feeling adventurous at the time Kind of regretting it now I had run a complete PC backup with Acronis software to external drive F on the st March which went completely smoothly Then I think I did a backup of just files and folders on rd March also Then after I changed that drive letter to E and then gave the drive an entirely new name cause I didn't like the name the tech had given it I then did another complete PC backup After this I got a system message from Acronis that said Warning The specified file path does not exist Click RETRY to try to read from the same location To Create a new version according to the current backup scheme click CANCEL I opted to click CANCEL not RETRY Was this a good or bad choice So far haven't received any advice from Acronis regarding this matter My question is have I stuffed up future backups by changing the drive letter and renaming the drive If so how do I rectify it Help someone LOLRegards Jen

A:Changes to Drive letter & rename causing backup problems to external drive

 I don't use Acronis, but if you think changing the drive letter caused a problem, can't you just change it back?  The Administrative Tools applet of the Control Panel is what I've always used to change drive letters. Changing the name (I assume you mean the drive label) should have no effect.
 Good luck.
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xp cannot find it disk manager can do format and no drive letter help please thank you permalink robtonet Registered User Join Date Apr Posts OS xp help trying to initialize an external hard drive on xp home ed -------------------------------------------------------------------------------- i may not know enough about the problem to completly describe it but i will begin an gig external hard drive was given to me it was rebuilt on a win system my home edition of win xp--reconginzes it as disk - in disk manager however it is not formatted or able to be found and does not have a drive letter assigend to it i logged on as quot administrator quot in safe mode to see if i could get the drive path settings option to maxtor external hard drive drive and by letter undesignated unformatted come up in disk manager i could not-------does any of this make any sense to anyone that option still does not come up under user or administrator in disk managment--so it is unformatted and has no drive letter thus xp cannot find it OS Name Microsoft Windows XP Home Edition Version Service Pack Build OS Manufacturer Microsoft Corporation System Name System Manufacturer Dell Inc System Model ME System Type X -based PC Processor x Family Model Stepping GenuineIntel Mhz BIOS Version Date Dell Inc A SMBIOS Version Windows Directory C WINDOWS System Directory C WINDOWS system Boot Device Device HarddiskVolume Locale United States Hardware Abstraction Layer Version quot xpsp sp rtm - quot User Name Time Zone Central Daylight Time Total Physical Memory MB Available Physical Memory MB Total Virtual Memory GB Available Virtual Memory GB Page File Space GB Page File C pagefile sys and here it is the maxtor HID-compliant mouse HID VID D amp PID C D amp CF B amp amp Intel R FB FBM USB Universal Host Controller - PCI VEN amp DEV amp SUBSYS C maxtor external hard drive unformatted and undesignated by drive letter amp REV maxtor external hard drive unformatted and undesignated by drive letter amp AAA amp amp E Intel R FB FBM USB Universal Host Controller - PCI VEN amp DEV amp SUBSYS C amp REV amp AAA amp amp E Intel R FB FBM USB Universal Host Controller - A PCI VEN amp DEV A amp SUBSYS C amp REV amp AAA amp amp EA Intel R FB FBM USB Universal Host Controller - B PCI VEN amp DEV B amp SUBSYS C amp REV amp AAA amp amp EB Intel R FB FBM USB Enhanced Host Controller - C PCI VEN amp DEV C amp SUBSYS C maxtor external hard drive unformatted and undesignated by drive letter amp REV amp AAA amp amp EF MAXTOR L J USB Device USBSTOR DISK amp VEN MAXTOR amp PROD L J amp REV amp USB Human Interface Device USB VID D amp PID C D amp F D amp amp USB Mass Storage Device USB VID C B amp PID BCF USB Root Hub USB ROOT HUB amp F amp USB Root Hub USB ROOT HUB amp A B amp USB Root Hub USB ROOT HUB amp A EC amp USB Root Hub USB ROOT HUB amp DBF amp USB Root Hub USB ROOT HUB amp E B A amp it is on the system and the system reconginizes it but i cant find it click on it and it is not in my list when i open start and explore devices any help -------it apparently needs to be formatted with nfts or fat i am lost i am afraid this will be a sort of convuleted email tag deal so thanks for you help-------robtonet yahoo com

A:maxtor external hard drive unformatted and undesignated by drive letter

What size is the hard drive?

Do you know what motherboard you have?

STEP 1: CHECK POWER (click for expanded instructions further down the page)

Verify that the drive light and the light on the AC adapter (power supply) is illuminated normally.
It is sometimes necessary to contact Technical Support for troubleshooting and/or possibly to replace the power supply if it behaves unusually.

STEP 2: CHECK CABLING (click for expanded instructions further down the page)

Confirm that your USB/Firewire cable is firmly connected in a port that is on the rear of your desktop computer (if you have a desktop).
Try another USB or Firewire port.
If your drive is powered only by USB, such as the FreeAgent Go, the Maxtor OneTouch mini, and the Seagate Portable drive, then the drive's cable has two USB connectors. Try connecting both of the free USB connectors into a USB port for maximum power availability.
Avoid connecting the drive via a USB hub for now.


Follow these instructions to ensure that your installation of Windows XP/2000 has been updated to the latest Windows Service Pack.

Right-click on My Computer and choose Properties.

The System Properties window will appear. On the General tab (which will be at the front), see the "System:" information.

For Windows 2000: Update to Service Pack 4.

For Windows XP: Update to Service Pack 2.

Allow your computer to complete the installation of the Service Pack.

Reboot the computer and connect the drive. Turn it on and see if the drive is detected now.

STEP 4: CHECK DISK MANAGEMENT (click for expanded instructions further down the page)

Check Disk Management to see if the drive is detected there.

Right-click on My Computer, select Manage, select Disk Management.

Check the upper window to find whether the drive letter is present.

Check the lower window to find whether the drive is detected (such as, Disk 1, Disk 2, etc).

If it is detected as with a drive letter, verify no other device is already using that drive letter. If it is, change the drive letter of the external drive to some unused letter (click here to see more instructions on how to do so).

If changing the drive letter is not possible or the drive does not have a drive letter at all, attempt to reformat the drive (click here to see more instructions on how to do so). This will erase any data on the drive, but since the drive is brand new, there is nothing to erase on it.

If it is still not detected, proceed to Step 4.

STEP 5: CHECK DEVICE MANAGER (click for expanded instructions further down the page)

Verify that your Windows installation contains the most recent Service Pack.

In the left column of Computer Management, click on Device Manager.

Look for the drive?s model number/name in Disk drives (a category under Device Manager).

It will probably not be there. If it is, test the drive on another computer if you can.

If it is not there, check under Other devices (a category under Device Manager).

If under Other devices an Unknown device appears, double-click on it.

Under the General tab, we would expect to see "This device is not working properly" and either (Code 28) or (Code 10).

If Code 10 appears, the drive has most probably failed.
Double-check that you have installed the most up-to-date Windows Service Pack.
Verify by trying the drive with another USB cable or port, or on another computer.
If none of this gets the drive detected, you can begin a replacement order online, or, since the drive is new, you can usually exchange the faulty unit for a replacement at your place of purchase (please contact the place of purchase for a full explanation of their policy regarding returns).

If Code 28 appears, you will need to test the drive on another computer. If the drive works fine on another computer, follow the procedure in this Knowledge... Read more
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A:Unable to assign drive letter to newly installed SATA drive.

I had the same problem this week with a drive like that. Have you tried to reformat it? Also make sure your system can handle a 2TB drive.
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A:Hard drive isnt allowed to change the correct drive letter

Hi KiityCancer,

What you say makes perfect sense. So, if a restart changed the drive letter to I, then H won't be there. Why not just leave it at I or is there more to this story...
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I went to sleep and woke up to find Windows 7 Pro had updated and rebooted and I was welcomed by my login screen.

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I went into Administrative Tools > Computer Management > Disk Management

Drive letter F is not available.

F is assigned to a drive that does not exist and never has. I am confused. I only have one CD drive and it says now that I have 2 even though the one addressed as F doesn't have any information. If I click on F it says "Insert Disk"

A:External Hard Drive (F) Drive Letter changed to G - Can't change back

Update: The mysterious other CD Rom drive seems to be MagicJack.

I did some research but the following tech help did NOT work as you can see by the previous post picture that it doesn't not show it up in Disk Management:

MagicJack/Support Resources/How-To/Assign Drive Letters - Wikibooks, open books for an open world
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Does the external drive work on another machine?

Also, while the drive is still connected, can you go into Device Manager (right-click My Computer, click on 'Manage...', click on 'Device Manager') to check for any yellow exclamation marks or red crosses next to anything in there?
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Before I had just clicked on the drive and it expanded out and you could click on the files on that drive.

Anyone know what might cause this to change or what I can do to change it back?

Not a major issue, but it's puzzling as to how it got that way.

Thanks in advance...

A:Solved: Windows Explorer-Clicking on Drive Letter opens up Search instead of Exploring Drive!

Download and run this fix.
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And why someone would want to use one option vs. the latter? (common uses).

thanks for any ideas.

(I only have one hard drive, so this would be an extended partition on the same disk)

A:Solved: Logical drive question: Normal Drive letter vs Mounting as a volume as empty folder

Here's a link to explain it:,_FAT,NTFS))

Good luck.
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Will copying everything from the old drive onto the new drive and then renaming the new drive letter (I to the old 'games' drive letter (E (after removing the original 'games' HDD) work the same?

A:Can't clone a new drive; can copy and rename drive letter work?

When cloning software asks you to reboot it's because they notice that some of the stuff you want to clone is used by Windows somehow. Even if you were just copying files or whatever. Maybe Steam was active or some kind of background program.

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Will copying everything from the old drive onto the new drive and then renaming the new drive letter (I to the old 'games' drive letter (E (after removing the original 'games' HDD) work the same?

Yes it will work fine. FastCopy is an utility that will help you transfer so much data quickly and efficiently (more than copy-paste), and can check that all files were copied successfully (just to be sure), and stop/begin again the transfer without a lot of fuss.
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Did you try to plug them in reverse order (the second drive first and when that's recognized, plug in the first one)
My drives are WD My Book 1TB and 2TB. at first they refused to play together nicely.
I had to run the WD-DriveManager (which came with the 1TB drive) once to " beat" them into submission

Good Luck
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XP Home and Pro.

A:When mapped drive not found, explorer goes to next drive letter. Delays.
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A:Solved: External hard drive not assigned a drive letter

If the drive shows up in Disk Management (Start/Run/diskmgmt.msc/OK), right-click the drive icon or the area showing the drive below, select "Change drive letter and paths". In the next window click "Add". Next window click the radio button for "Assign the following drive letter". Select a drive letter. Click OK.

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A:can't boot to second internal hard drive after changing drive letter

I don't know if this helps, but is drive L still marked as an "active" partition in disk management?  When you right click the partition the option should be there to do so if it is not marked as such.
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A:Removing External drive with Ubuntu OS but no drive letter designation


Look here for one un-install option: -

How To Safely Uninstall Ubuntu From A Windows Dual-Boot PC
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Many thanks in advance.

A:windows wont allocate drive letter to external drive

Please post a full screenshot of Windows Disk Management with only the Seagate Freeagent GoFlex external drive plugged in. ( Plug out all other external drives). Please read this tutorial and adhere to the guidelines therein to post a full Screenshot disabling Console Tree, Action Pane and adjusting the seperators as necessary to show all information. Disk Management - Post a Screen Capture Image
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Hello. Correct boot sequence, not sure why the letters are reversed - you might be able to (carefully!) correct them, article here seems to explain it fairly well?
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A:No access to GPT drive in Windows 7, no drive letter can be assigned


I stumbled across a forum post (TomsHardware) that claimed TestDisk and PhotoRec have the ability to recover data from GPT drives. Is it worth a go?

PhotoRec - CGSecurity
TestDisk - CGSecurity

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A:Default drive letter for "System" drive in Windows 7?

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yes, but it will only work on the computer that you are setting this up on.

Go to Control Panel > Administrative Tools > Computer Management > Disk Management

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Shortcut: type in "Disk Management" in the start menu search bar and select "Create and format hard disk partitions"
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A:Solved: Second hard-drive drive letter assignment

Right click My Computer, click management, then enter the "Disk management application on the left.
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A:Why can't I assign a drive letter to and explore this hard drive?

did you change the jumpers for Master/CableSelect/Slave - appropriate to where you installed

I have recently seen this where windows will not see, but installing UBUNTU as a virtual CD will see the drive and copy any data files
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I am posting here as well as in the hard drives part...

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Computer"). Now, the passthru works fine on the ext. hard drive feeding
another firewire device, but I can not get the pc to show a drive letter for
the ext. drive anymore. The ext. drive shows up fine on another pc w/ xp
pro. What .dll or file is missing or has been corrupted to cause this? I
also have a client that is experiencing the similar problem with his new pc
w/xp pro and a USB thumb drive, and thought these 2 issues may be similar in

Thanks in advance,
Dave S. A+ certified

A:Ext. hard drive is recognized, but no drive letter assigned in XP Pro

Hello... any ideas??? anyone???
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My backup software's profile database is expecting to backup to H:, which was the drive letter for my external backup drive back in XP. This drive comes up in Win7 as K, because Win7 has given my four usb card reader drives the letters F,G,H,I. Disk Management will not show these four card reader drives unless media is inserted (connected vs. disconnected). I have changed the letters for F,G,I to T,U,W, but only because I have those types of cards (SD, CF, MS)...I do not have an XD or SmartMedia card for the one dang drive I really need to change.

What are my options, other than buying the cheapest SM card I can find to make the drive visible for this task? The SmartSyncPro database has many profiles, so remapping all those to point to K would be a major hassle.


A:Disk Management - chg drive letter-disconnected drive

Quote: Originally Posted by bobogs

My backup software's profile database is expecting to backup to H:, which was the drive letter for my external backup drive back in XP. This drive comes up in Win7 as K, because Win7 has given my four usb card reader drives the letters F,G,H,I. Disk Management will not show these four card reader drives unless media is inserted (connected vs. disconnected). I have changed the letters for F,G,I to T,U,W, but only because I have those types of cards (SD, CF, MS)...I do not have an XD or SmartMedia card for the one dang drive I really need to change.

What are my options, other than buying the cheapest SM card I can find to make the drive visible for this task? The SmartSyncPro database has many profiles, so remapping all those to point to K would be a major hassle.


I use Acronis backup and I set it to backup to drive Z. Then go into Disk Management and assign your backup drive to be drive Z. Usually this will never change due to removable drives.
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A:Changing drive letter of main hard drive

Hello silver2142

You can change the drive letter of anything except the system partition.
Unfortunately, the only real way to change the system partition letter is to wipe and reinstall.

XP won`t mind being installed on "I". It is just an inconvenience to you.

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Change letter of the boot drive or the system drive

Under xp pro is possible but I haven't try under windows 7 64 bits.

xp is possible according to

How to restore the system/boot drive letter in Windows

Do you know the procedure ?

Best Regards

P.D. I have seen a pair of post in this forum but I was not able to determine....

A:Change letter of the boot drive or the system drive

It seems to be the same. But why on earth did you want to do this.
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It shows up in Device Manager ( says, "this device is working properly")
Show up in USB Safely Remove
Shows up in Devices and Printers
Shows up in Disk Management as Unknown/Unitialized, Disk 10. (When I right click and try to initialize it, it says "Device is not ready".)
The Driver is up to date
It works when I attach it to my husband's laptop, running Windows XP.

What can I do to assign it a drive letter???

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A:Different drive letter each time i insert my flash drive.

Do you remove is safely (using the icon in the system tray that looks like a oblique shot of a card with an arrow pointing down and left?)
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Could someone let me know if I can just remove this without issues arriving later?

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Does anyone know why this might be happening or anyway to prevent?
Seems like when I go to disk management and assign K it should stay that way.

A:External Sata drive will not keep assigned drive letter

Quote: Originally Posted by Terrym

I am running Windows 7 Pro. Have a external dual dock connected to a estata port. One of the drives assigned letter K often comes up as E and I have to change as application is looking for K. Another disk in this dock works fine. No problems.
Does anyone know why this might be happening or anyway to prevent?
Seems like when I go to disk management and assign K it should stay that way.

Try assigning a drive letter a "distance" away from your existing drive letters.

For example, change the dock drive letter to Z and see how you get on with that.
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Under XP Media Center
I have two internal HDs two CD drives, one ext. HD and Windows has assigned drive letters to all and all have been stable over the years the very weird thing , and I can't figure out why, is that for my USB thumb drive - which I always plug into the same USB port it changes letters after an extended period - say about 8 months, it will go from "G" to "I" and then back. It is bothersome only because I use the "Send To" command for many files. is there a way to stabilize this or is it just another XP annoyance I must put up with.

A:windows XP keeps alternating drive letter for thumb drive

goto control panel
Admin tools
computer management
disk management
in the right hand side you should see all the drives
go to the the drive that you want to change the letter ID
right click - then choose "change drive letter" a box will appear with the current letter
choose a new letter and click ok then its all done same letter every time

I often set to X, Y, Z for external and any mapped drives

have a read here
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I need this drive to be G: - how do I find where Windows thinks that letter is allocated and release it?Philo Janus, MCP Author: Pro InfoPath 2007 Pro PerformancePoint 2007 Pro SQL Server Analysis Services 2008 Building Integrated Business Intelligence Solutions with SQL Server 2008 R2 & Office 2010 Blog @

A:Drive letter missing after removing hard drive

The problem was that the drive letter I needed wasn't in the list.
A note for anyone who reads this in the future who does support - when working with someone who says "a drive letter is missing" make sure to understand if they mean the drive doesn't have a letter assigned, or if the problem is that the letter they need
isn't available. I saw a LOT of this while I was researching this problem - I could tell that the person asking the question was saying that the letter wasn't in the list, but the person trying to help would just point them towards drive management (where
they already were, if you read carefully)
In my case, it turned out I have software running that mounts iso files as CD drives. That's where the drive letter was - it had taken the assignment, but without an iso mounted, it didn't show up in drive management.
Philo Janus, MCP Author: Pro InfoPath 2007 Pro PerformancePoint 2007 Pro SQL Server Analysis Services 2008 Building Integrated Business Intelligence Solutions with SQL Server 2008 R2 & Office 2010 Blog @
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oh, one more thing i do have an XUBUNTU installed too. i can see all the contents of my windows drive even the .reg. being linux the reg is useless presently. i dont wish to format the OS . kindly tell me what to do

A:i changed the drive letter of boot drive .DOES NOT LOG IN;

Were you folloing this article?

You need to change the drive letter back. As the warning says:
Warning Do not use the procedure that is described in this article to change a drive on a computer where the drive letter has not changed. If you do so, you may not be able to start your operating system

I don't know if XUbuntu has a tool to edit the Windows registry, but you can use a Vista or Win 7 DVD to do the editing.
If you don't have one, a Vista RE disk can be downloaded from one of these links:
Vista Recovery Environment CD
64 bit Vista
32 bit Vista

Note, the drive letter of the XP Partition as seen when booted to the Vista/Win 7 disk may be different than drive C:, so change the letter as needed.
Using a Vista/Win 7 Disk

Boot with the Vista/Win7 DVD
Select Language, click Next
Click Repair your Computer
It will search for Vista/Win7 installations, just wait for it to finish.
If using Win7 Disk, select Use recovery tools that can help fix problems starting Windows.
Click Next
Click Command Prompt.
Type regedit and press Enter:
In the left pane, click on HKEY_LOCAL_MACHINE to highlight it
Click File | Load Hive...
Browse to C:\Windows\system32\config
Double click on SYSTEM (the one with no extension)
In the Key Name: box type @System
navigate to here:

You can now reverse the steps in the article to change the drive letter back to G:
You might be able to edit the .reg file you saved, changing HKEY_LOCAL_MACHINE\System\MountedDevices to HKEY_LOCAL_MACHINE\@System\MountedDevices, and then import the file. I've not tried importing or merging in this situation.
When done, click on HKEY_LOCAL_MACHINE\@System in the Left Pane
Click File | Unload Hive...
Click Yes
Close the Registry Editor.

If you need to change the drive letter of the System drive, you need to re-install XP, disconnecting any other devices that are using the drive letters from C-F (except for the CD/DVD-ROM drive of course).


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How to change the system boot drive letter in XP If you break a mirror volume or for some other reason the drive letter of your system and or boot drive gets changed so that the drive now has the wrong letter not the one assigned to it when you installed the OS you'll find that the Disk Manager won't let you change the letter of those drives This is to protect you from making changes that render the OS unbootable and you should make those changes only if the drive let gets changed as described above To do so you have to edit the registry Be sure to back it up first Log on with an administrative account Click Start Run and type regedt exe to open the registry editor Navigate to the following key HKEY LOCAL MACHINE SYSTEM how xp change boot the letter of win to drive drive In the right pane click MountedDevices On the Security menu click Permissions and ensure that Administrators have full control Close regedt exe and run regedit exe Navigate back to the same registry key Locate how to change the drive letter of win xp boot drive the drive letter you want to change such as DosDevices C right click it and select Rename Rename it to the letter you want it to have such as DosDevices D Close regedit exe and run regedt exe again to change the permissions on the key back to Read Only You'll need to restart the computer for the change to take effect Be very careful about renaming drive letters of system boot drives
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My present hard drives are:

Primary Windows 7 128GB SSD - labeled C:
ASUS DVD Optical - labeled D:
WD 1TB Internal Storage - labeled E:
Seagate 800GB External Storage - labeled F:

When I tried to reboot with the new drive plugged in, Windows 7 recognized the system image from my internal storage E: drive but in the System Recovery Options menu, the storage's letter suddenly changed to C:...

How do I keep the NEW 256GB installed drive as C:? Is it possible to change the primary drive letter in Windows 7 Disk Management back to C: after a primary SSD drive switch and system image recovery?

A:Want to change Primary SSD drive but keep Drive letter at C:

Robinsongs, welcome to the windows 7 forum.

If you install the new ssd in your d slot after restoring your image to the SSD, your bios will normally allow you to
select the boot drive. which you can select as the new SSD.

I would remove the old C drive and place the new ssd in the old C slot. Should be ok.

This way when you boot your machine the bios should automatically boot from your new ssd.
If you have restored your old c image to the new ssd properly.

Bios normally allows you to select boot devices.

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Does anyone know a save way to label the Win 7 drive as "C" while in Win7?



A:How to change drive letter for boot drive?

In the search box, type "Computer Management". From iwithin computer management select disk management and you will see the ability to change drive letters. I don't know if this might mess up your ability to boot though.
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Thanks in advance!



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Got this from directory opus site, but made new registry file for you.

1. - unzip drive icons to - C:\DRIVE ICONS
2. run registry file
3. reboot pc


to undo run the restoredriveicons reg file.

here is original link - HERE

some pics below of my stuff - GOOD LUCK

A:Show Drive letter on Drive Icon

here are some more registry files for different icons - such as flash, ghost, CD rom, hard disk - they go to letter H or I i believe.
Can change certain drives after doing the fix above. This way you can still tell what drives are what.
All credit must be given to leo - admin over at the directory opus forum.

Thanks leo, t41

ps - to use with directory opus you must go to their forum and download the full .ocb file
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Device manager did show the usb2.0 flash drive when I plugged it in the usb port.

Any idea?

A:XP Pro SP1 won't assign a drive letter to usb 2.0 flash drive

For grins can you try changing the drive letter in device manager while it's plugged into a USB 2.0 port?
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A:Cannot add a drive letter to an external hard drive

Try to reformat it with NTFS if there is nothing on it. Use Partition Wizard free if Disk Management won't
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A:Assigning Drive Letter To New Backup Ext Usb Drive?

Try deleting it from the Device Manager and rebooting.
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A:Drive Letter assigned to CD Drive that does not exist

oh?  try plugging in a card there and see.  maybe then you'll be able to select a different drive letter for it in Disk Management.
or just unplug the scanner, unload its driver, and see if the phantom drive F: goes away.
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Usualy the CD-burner would get E: and the harddisk would get F:
I haven't been able to find out why C: and D: is not available from boot.

But is there an easy way to change the drive-letter, once it's been assigned?

I'm looking forward for your replies.

Best reards,

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A:Healthy Drive will not allow Drive Letter to be assigned

Hello, and Welcome,
It could be a bad enclosure. When you used Diskpart you used the list disk command, correct?
See if taking ownership of the drive lets you change the letter. The video is for Vista but the same applies to Windows 7.
Other option: Burn a Puppy Linux iso to a CD. Boot Puppy. On the Puppy desktop you will see your hard drives listed. Attach the external drive. You will see a USB icon appear next to the DVD icon. It will most likely be called sdb1. If there is more than one partition on the external they will be labeled sdb1...sdb2  depending on the number of partitions. Click once on the sdb partition. The disk will automatically mount and you should see the files on the hard drive. 
Your Windows 7 partition would probably be sda2. Click once on it and if you do not see your Windows files close out the file manager and try another partition. You can highlight the files/folders on the XP disk using Ctrl+ left clicking or by windowing around the files/folders. Drag the highlighted folders to the Windows 7 file manager window. A small dialog window will appear. Click copy and quiet. You only need to click once on a folder in Puppy to open it.
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Any ideas why this is so?

Thanks in adv.


A:Why does win7 not show my drive with the drive letter

Stupid me.. dont show drive letter. was checjed
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I have several USB hard drives that this computer won't work with.
I have no problem with USB thumb drives, SD cards, etc. Also, some of my USB hard drives do work!
I have Windows 7 Home Premium.
These USB drives work fine on my two other Windows computers (Vista and 7) as well as on my Mac (10.3).
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If you need more information feel free to ask. I'll attach a photo of what i mean.

A:Internal Hard Drive does not have a drive letter but used to.

Welcome to Seven Forums BinaryMadman

The 500GB drive should not be listed as drive 0. shut down the system and swap the motherboard connectors on each drive. Let us know how that effects things for you. Go back to Disk Management, right click the drive in the bottom pane, Assign Drive leter (any will do).
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A:Mapped drive & USB drive letter conflict

Welcome to SF,

See if this Tutorial helps.
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A:USB External Hard drive - no drive letter

Hello and welcome... You may need to configure the drive in winXP for it to be seen properly.

Go here...
Control Panel---> adminstrative tools---> computer management---> disk management...

Does it see the hard there? I believe it will show up as Disk1... Select it and format it, you can also change the drive letter if you would like

Good luck,
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Hi all!
I used to have an external harddrive attached to my computer with the letter (Q) as I set myself.
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I have used regedit to solve this but when I restart it is there again. I think I will need some help with this. This is not my native language but I hope you understand.
PS. My internal disk is an SSD.

A:USB drive letter will not go away.

Hi Kejellemann, Welcome aboard.

Are you sure you had an external drive and you set the drive letter Q to it?

The Q drive is usually associated with Microsoft Office 2010 Click-to-Run suite. Are you sure that you do not have this?

What is the Q drive? - Microsoft Answers

If you had uninstalled the relevant program, here is how to to remove the persistent Q drive.
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I need to change a Drive Letter but I don t know how to go about it I recently had my old IDE type DVD Writer replaced by a new SATA type but knowing that my older type wasn t just yet on it s last legs I decided to re-install the older one I now have two DVD Burners This is when the trouble began I think the new drive has stolen the letter if that make sense but I don t know how to go about changing it back I know it has something to do with the Device Drive Letter Manager My aim is Drive Letter to have both DVD Writer s available for use perhaps using them alternately But I understand that I need to change the drive letter But what do I change it to How do I do that Which drive do I change I guess I m looking for a step-by-step guide to this because I m just not sure what to do If it s any help my Elements External Hard-Drive - see screenshot - used to be E instead of F but I can t remember what the letter was for Drive Letter the older DVD Burner and looking at the screenshot for My Computer I m not sure which is which i e which is the old one and which is the new one Please help Also please see screenshots nbsp

A:Drive Letter

Your internal DVD drives will always have lower letters than external devices. So because you now have two optical drives, the external drive will be given the letter F.
Notice one says DVD-RAM and the other says DVD-RW.
I suspect the "D" drive DVD-RAM is the older device.
See if the faceplate has DVD-RAM on the front. Like this
I have never seen a DVD-RAM optical drive.
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Just installed Win 2000 Pro with a LD-120 drive by Digital Research Technology as master on secondary IDE.The Problem: Bios recognizies it on start as a LS-120 but My Computer shows it as 3 1/2" floppy drive "A" and the floppy drive as 3 1/2" floppy drive "B". Clicking on "A" powers the LS-120. Clicking "B" opens the floppy.The LS-120 when clicked does not function and is not recognized as being formatted although I know this is in error because it works fine in Windows 98. I thought it may be a driver problem but I can't find this company on web. Any advice? Thanks P.K.

A:Drive letter A?

I had a similiar problem with my LS-120 drive (Panasonic).

My LS-120 drive is the only floppy/LS120 drive I have in my machine although it was showing as 2 different drives in 2k Pro and Win98?.

To fix it, I did the following:

On boot, enter your BIOS and go for Standard CMOS Features(where all your drives are).

In there, you will find
"Drive A: 1.44MB"
"Drive B: None"

Change drive A: to be none aswell.
Disable Floppy Mode 3 Support (if enabled).

Exit that screen and go into "Integrated Peripherals".
Where it says "Onboard FDD Controller:" - change this to disabled.

By disabling the above settings, it stops the BIOS from probing for a 1.44Mb floppy drive, and windows from thinking it has one.

Your LS-120 is no longer on the FDD cable, as it is detected as an EIDE device.

Hope this helps!.

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Good day all not I OS letter be. Drive as C: it to want My situation is previous OS was Vista home edition after evaluatiing the Win RC I bought myself a copy of Win OS Drive letter not C: as I want it to be. installed it on a new hard drive and have been happily using my system as a dual boot one both Win and Vista working fine Need has required me to remove the hard drive containing my Vista OS and I'm now using a single Win system Everything OK on that btw just that now I have the OS on Drive M not C where I would like it to be Having had a read through on the Boot Drive letter allocation posts I've established that it is impossible to change the system boot drive letter I would prefer not to have to do a full re-install of Win and all my programs but if that is the only way so be it I believe I'm right in saying that even doing a full backup and then re-installing Win wouldn't be of use as the backup would be looking to restore to the M drive My question then would be how do I ensure than a new installation of Win WILL select drive C to install to This might be self evident when a re-install is started but I'd like to be one step ahead here and know what's coming Any guidence would be most gratefully received here All the best Mick C

A:OS Drive letter not C: as I want it to be.

Hi there, when you do a clean install, on a blank HDD, win7 would automatically select it as C drive.
Drive A: Floppy Drive
Drive B: 2d Floppy Drive
Drive C: Hard Drive (OS partition)
Drive D: CD/DVD drive.

So be rest assured and dont forget to back up before doing a clean install.
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I have two Maxtor OneTouch USB drives, which are normally connected to separate notebooks as backup drives. For a brief period, I had them both connected to one of the notebooks. Windows XP SP2 assigned them drive letters E: and F:.

Now I'm back to just one drive per PC. But the one which was F: is staying F: and doesn't want to go back to E:, despite several disconnect/reconnect sequences, as well as reboots. There is no device (no other drive, no SD card, nothing) occupying E:.

How do I get it to use drive letter E:, which is where my software is looking for it?

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I seem to be having some problems with my USB drive. When I plug it in, Windows recognizes that something has been plugged in, but it doesn't give me a drive to open. In the Disk Management section of the Computer Management console, it recognizes that there's a disk drive there, reports its size correctly and even says that it is active and healthy, but it doesn't have a letter, and any attempts made to format it or give it a letter fail, the first via error, and the second via ignoring the command, or so it seems.
Any insights would be appreciated.
Oh, also although I hadn't used the drive for several days beforehand, the only major change that I had made since the drive was used last was that I had to reinstall Windows.

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Hi guys.. Im out of ideas.. 3rd day.. tryng to google. microsoft help. nothing..

Can anyone help me please.

Any of my removable drive-device doesn't show up in explorer or my computer, but I can see it in device manager. Everithing is ok with drivers and hardware. I can even access the media... via- chansing the drive letter physically in computer management. After reboot it dissapears.. I think the problem might be in win. xp pro sp 1. im using
i tryed to use all the updates.. but it didnt help.. instead it crashed my settings.

Does anybody know somethong about it? Thanks

A:Drive letter

midas said:

Any of my removable drive-device doesn't show up in explorer or my computer, but I can see it in device manager. Everithing is ok with drivers and hardware. I can even access the media... via- chansing the drive letter physically in computer management. After reboot it dissapears.. Click to expand...

As I understand you, in Disk Management, you can see the removable drives in the lower right pane but they have what, no drive letter assigned or the wrong drive letter assigned?

Is your floppy effected, or just your CD and/or DVD? If just the CD and/or DVD, are they both on the secondary IDE controller (that is, your HDD's are on the primary IDE)?

Using "regedit," look at HKLM\SYSTEM\MOUNTED DEVICES, and in the right pane look for \DOS Device\X:, where X is the assigned drive letter. See if your devices are all listed there with values (in hexadecimal) for each device shown, and you can find corresponding values associated with \??\Volume{........

I don't know what's going on, and I may be getting ahead of myself while waiting for your response, but at first blush it may be that WinXP is not assigning and/or retaining drive letters and volume signatures. This could mean some system file and/or boot sector corruption. If you haven't already, try Start/Run/type "sfc /scannow" in the dialog box (without the quotations). You may need your WinXP installation CD; the utility will prompt you if you do.

Another guess, if the drives affected are all on the same controller, it could be a MOBO, IDE controller or cable/connector problem.
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How do I change the letter of my CD drive? The computer picked H but I don't like that. How do I change it?

A:CD drive letter

Right click on My Computer . . select Manage . . then Disk Management

Right click on the cd drive . . selecr Change Drive Letter . .