Windows – Option to set a drive letter missing

Finally I got a response from Microsoft Support directly who asked me to follow this proceedure:

please try to uninstall the security software and then uninstall and reinstall the Display Adapter Drivers and then check the status of the issue

I uninstalled MSSE, Malwarebytes and Nvidia drivers, then installed the Nvidia drivers.

I inserted disk 2, but it still didn't come up in Explorer. Having no faith in the following I tried it again anyway: Went to Device Manager once more and uninstalled the "unknown device" and the "known device" and re-scaned for PnP hardware.

Boink ! It showed up in Explorer and no BSOD.

Disk 3 connected and required no further attention as it was recognised instantly in Explorer.

The uninstall/install process took a total of 30 mins. I didn't learn a hell of a lot but it was a better solution to hours re-installing Windows and all my software and settings.It's worth hanging on a little longer before breaking out the Windows install disk.

Finding the drive letter of the most recently mounted xvhd or vhd file in batch? How do I find out what drive letter it was assigned using the command prompt?

Pipe the output of Get-DiskImage to Get-Volume or Get-Disk and Get-Partition:

For an ISO file:

GET-DISKIMAGE filename.iso | GET-VOLUME

For a VHD file:

GET-DISKIMAGE filename.vhd | GET-DISK | GET-PARTITION

_Source

Example

Based on the article you provided I incorporated the PowerShell logic into the below batch script to include dynamically getting the drive letter used to mount the VHD or ISO file so you can then use that as a variable name to CD to the directory to run your command implicitly or you can use it otherwise to explicitly set the drive letter for whatever you need it for the commands you'll use it with, etc.

Script

@ECHO OFF

SETLOCAL

SET DiskPartScript="%TEMP%DiskpartScript.txt"

ECHO SELECT VDISK FILE="%~1" > %DiskPartScript% 
ECHO ATTACH VDISK >> %DiskPartScript%

DiskPart /s %DiskPartScript%

SET PowershellScript="%TEMP%\PowerShellScript.ps1"

:: -- Use below for VHD 
ECHO GET-DISKIMAGE "%~1" | GET-DISK | GET-PARTITION | Select -ExpandProperty DriveLetter > "%PowershellScript%" 

:: -- Use below for ISO 
::ECHO GET-DISKIMAGE "%~1" | get-VOLUME | Select -ExpandProperty DriveLetter > "%PowershellScript%"

SET PowerShellDir=C:\Windows\System32\WindowsPowerShell\v1.0 
CD /D "%PowerShellDir%" 
FOR /F "DELIMS=" %%A IN ('Powershell -ExecutionPolicy Bypass -Command "& '%PowershellScript%'"') DO SET "DriveLetter=%%A"

CD /D "%DriveLetter%:\" 
<Commands> 
<Commands>

ENDLOCAL

Further Resources

• Get-DiskImage
• Get-Disk
• Get-Partition