removedisk.bat

@echo off
@cls

set tempfile="%TEMP%\diskscrp.dsk"

echo.
echo   === Disk removal tool ===
echo.
echo   Select the disk volume number
echo   (if the disk has multiple volumes, select any of them)
echo.
echo list volume | diskpart | findstr /C:Volume /C:---
echo.
set /p volume="   Selected volume: "
echo.

echo select volume %volume% >>%tempfile%
echo offline disk >>%tempfile%
echo online disk >>%tempfile%

diskpart /s %tempfile% | findstr /C:"not valid"

if "%ERRORLEVEL%"=="1" (
  echo   Disk has been unlocked successfully.  Try to safely remove it now.
)

del /F %tempfile%