Mistakenly deleted the drive letter

[GlowingBrick]

I mistakenly deleted the drive letter with Disk Genius,This causes the partition to be invisible in Windows. Now I have tried various methods but cannot recover it.

[rautamiekka]

Removing the drive letter does nothing to the data, so this makes no sense. Just add the letter back.

[NaitLee]

I just had same problem and #363 helped. In a word:

• Launch PowerShell with Administrative privilege
• See possible volume GUIDs with the command: mountvol /?
• Try possible GUIDs by modifying this command:
  • Get-WmiObject -class Win32_Volume | where-object {$_.DeviceID -Like "\\?\Volume{0000000000000-0000-0000-000000000000}\"} | foreach-object -process {$_.AddMountPoint("R:")}
  • replace 0000000000000-0000-0000-000000000000 as a GUID, and R: as desired drive letter.
  • try all the unmounted GUIDs if unsure which is

Just leave a note, seems that btrfs "volumes" are not ordinary "volumes". If the btrfs partition was assigned a drive letter by ordinary tools (bootice in my case), Windows would just consider it an "unformatted drive"...

[okphilo]

I just had same problem and #363 helped. In a word:

* Launch PowerShell with Administrative privilege

* See possible volume GUIDs with the command: `mountvol /?`

* Try possible GUIDs by modifying this command:
  
  * `Get-WmiObject -class Win32_Volume | where-object {$_.DeviceID -Like "\\?\Volume{0000000000000-0000-0000-000000000000}\"} | foreach-object -process {$_.AddMountPoint("R:")}`
  * replace `0000000000000-0000-0000-000000000000` as a GUID, and `R:` as desired drive letter.
  * try all the unmounted GUIDs if unsure which is

Just leave a note, seems that btrfs "volumes" are not ordinary "volumes". If the btrfs partition was assigned a drive letter by ordinary tools (bootice in my case), Windows would just consider it an "unformatted drive"...

wonderful