- 1 year ago
Convert from Windows NT device path to drive letter path
Converting a Windows NT device path (such as \Device\HarddiskVolume1\
) to a drive letter path (such as C:\
) can be achieved using the subst
command in a batch script. The subst
command allows you to associate a drive letter with a specific path, effectively creating a virtual drive letter for the specified folder. Here's how you can do it:
batch@echo off
setlocal
set "ntDevicePath=\Device\HarddiskVolume1\"
set "driveLetterPath=C:\"
REM Remove trailing backslash from NT device path
set "ntDevicePath=%ntDevicePath:~0,-1%"
REM Check if the drive letter is already associated
subst | find /i "%driveLetterPath%" > nul
if %errorlevel% equ 0 (
echo Drive letter already associated with another path.
goto :end
)
REM Associate the drive letter with the NT device path
subst %driveLetterPath% "%ntDevicePath%"
echo Drive letter %driveLetterPath% associated with NT device path %ntDevicePath%
:end
endlocal
Replace ntDevicePath
with the Windows NT device path you want to convert and driveLetterPath
with the desired drive letter.
This script:
- Removes the trailing backslash from the NT device path.
- Checks if the specified drive letter is already associated with another path using the
subst
command andfind
. - If the drive letter is not associated with another path, it uses the
subst
command to associate the drive letter with the specified NT device path. - Displays a message indicating whether the drive letter was successfully associated or not.
Please note that using the subst
command creates a virtual drive letter association, and this association is not persistent across reboots. If you need a persistent solution, you might want to consider creating a symbolic link or using other methods based on your specific use case.