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Windows 7: Ext Drive Lost it's Way

11 May 2012   #1

Windows 8.1 Pro
 
 
Ext Drive Lost it's Way

I have an external HDD that works on any other machine I test it on, except mine. It was working and for some reason I recently needed to use it and it didn't work. It appears in device manager but not in disk management. A drive letter might not be assigned to it, I can't see it in disk management to assign a drive letter to it.

My System SpecsSystem Spec
.

11 May 2012   #2

Windows 7 Home Premium 32 bit
 
 

Windows can get "confused" by all the old (and sometimes conflicting) USB storage driver data that tends to collect and remain installed on a PC.

Download drivecleanup.zip v0.8.1 from Drive Tools for Windows and extract it to a folder. You will find drivecleanup.exe, one for the 32bit Windows and one for 64bit Windows.

Unplug all USB devices in your system ( except the Mouse and Keyboard)

Right click on the appropriate one for your system and Run as Administrator.

This will remove all the non-present devices and all the corresponding registry entries left by them. You will now be starting with a clean slate.

Reboot your system and then plug-in your drive.

The necessary driver will be installed and your drive should be ready for use.

( I am not sure whether this will resolve your problem but there is absolutely no harm in trying it. I use this utility periodically to flush out the non-present devices and the driver references for these to avoid any problems.)
My System SpecsSystem Spec
11 May 2012   #3

MS Windows 7 Ultimate SP1 64-bit
 
 

Quote   Quote: Originally Posted by JerometheGiraff View Post
I have an external HDD that works on any other machine I test it on, except mine. It was working and for some reason I recently needed to use it and it didn't work. It appears in device manager but not in disk management. A drive letter might not be assigned to it, I can't see it in disk management to assign a drive letter to it.
USB, I assume.

Does it show up in DiskPart?
If yes, then in diskpart,you can use the ASSIGN Letter=J
as an example which would assign the letter J to the currently selected volume.

WIN | type CMD | do NOT hit ENTER | CTRL + SHIFT + ENTER keycombo | ALT + Y keycombo

type following and hit Enter
DISKPART

type and hit ENTER
LIST VOLUME


from the list of volumes, find the one that corresponds to your external drive.
type and hit enter
SELECT VOLUME 8
here 8 is an example, you enter the correct volume number

type and hit enter
DETAIL VOLUME
this will reassure that you have the correct volume

type and hit enter
ASSIGN LETTER=K
here "k" is an example. Use the letter of your choice.

type and hit enter
EXIT
to exit the diskpart program

type and hit enter
EXIT to exit the command shell
My System SpecsSystem Spec
.


11 May 2012   #4

Windows 8.1 Pro
 
 

None of those options worked. It is listed, no drive letter to read the content.
My System SpecsSystem Spec
11 May 2012   #5

Windows 7 Ultimate x64 SP1
 
 

Just to confirm, this problem only happens on your computer? If so, and the drive works elsewhere, do other USB devices work on your computer?
My System SpecsSystem Spec
11 May 2012   #6

Windows 8.1 Pro
 
 

Quote   Quote: Originally Posted by DeaconFrost View Post
Just to confirm, this problem only happens on your computer? If so, and the drive works elsewhere, do other USB devices work on your computer?
The problem only happens on my computer and all other USB devices work. I can see the USB drive in device manager, but not in file explorer as a drive letter.
My System SpecsSystem Spec
11 May 2012   #7

MS Windows 7 Ultimate SP1 64-bit
 
 

Quote   Quote: Originally Posted by JerometheGiraff View Post
None of those options worked. It is listed, no drive letter to read the content.
I do not understand your answer.

Did your usb drive show up in diskpart? Yes/No.
My System SpecsSystem Spec
11 May 2012   #8

Windows 8.1 Pro
 
 

Quote   Quote: Originally Posted by karlsnooks View Post
Quote   Quote: Originally Posted by JerometheGiraff View Post
None of those options worked. It is listed, no drive letter to read the content.
I do not understand your answer.

Did your usb drive show up in diskpart? Yes/No.
No.
My System SpecsSystem Spec
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 Ext Drive Lost it's Way




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