Windows 10: Windows 10 will not assign a drive letter

Windows just refuses to assign a drive letter to my external Nvme m2 pcie drive .

It can see the drive but incorrectly reports the size as 2TB when it is actually 1Tb then when opening the menus everything is greyed out. I opened the drive in a number of partition programs and they can see the drive and report it correctly they also can assign a drive letter to it .But when I leave the drive connected and reboot the assigned letter is gone and once again Windows Disk management can see the drive but once again I can't assign a drive letter and it still incorrectly reports the size.

Does anyone know how to fix this problem ?

:)

 

help. USB drive isn't assigned a drive letter.

Any usb flash drive I plug into my computer isn't assigned a drive letter. The physical drive shows in the "safely remove hardware" but it doesnt show up in disk management. I have tried to populate the volume thru the safely remove hardware properties window and it does pop up in the list but it doesn't stay there. This isn't a format or assign a letter problem. It's more complicated then that. Maybe one of the services needed for usb drive management was disabled? Suggestions needed. btw external usb harddrives work fine.

 

Drive letters are not available for assigning to unallocated space

Hello Sjoerd,



Thank you for writing to Microsoft Community Forums.



The reason the drive letters are not available to assign are because they might have been assigned to devices which are removed or hidden. I suggest you to check for any hidden devices and remove them to assign the missing drive letters.



Follow the steps mentioned below to check for the hidden or removed devices.

1. Press Windows key + R. This will open
   Run. Alternatively, you can go to Start and search for Run.
   
2. In Run dialog box, type
   devmgmt.msc and hit enter.
   
3. Click on the view tab at the top left hand corner.
   
4. Now select View hidden devices.
   
5. Now look for the hidden devices under storage volumes and
   portable devices.
   
6. Right click on the hidden devices and click on
   uninstall.
   
7. Restart the PC.
   

After restarting the PC, try assigning the drive letter to the unallocated drive and check if the drive letters D, E, F, G, and H appears.



Hope it helps.



Regards,

Prakhar Khare

Microsoft Community – Moderator

 

Assign a drive letter

When I plug an external hard drive to my PC (Windows 10) via the USB, the computer does not recognize it in Windows Explorer. I have to go into Disk Management to assign the drive a letter before I can see it in Windows Explorer. Is there an option in
Windows 10 to automatically assign the drive a letter, and I can see the drive in Windows Explorer, so I do not have to keep having to assign letters to external drives?