KeyAxis/undo_gamebar.bat at main · RigZeeel/KeyAxis · GitHub

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@echo off
REM ============================================================================
REM  undo_gamebar.bat - reverses fix_gamebar.bat exactly.
REM
REM  fix_gamebar.bat records the ORIGINAL state under
REM  HKCU\Software\KeyAxis\GameBarBackup before touching anything. This script
REM  puts it all back:
REM    * protocol handlers  - deleted ONLY if they did not exist beforehand
REM    * GameDVR values     - restored to their previous value, or deleted if
REM                           they didn't exist before
REM    * the backup key itself is removed afterwards
REM
REM  Per-user (HKCU), no admin needed. The KeyAxis uninstaller runs this
REM  automatically with /silent.
REM ============================================================================
setlocal EnableDelayedExpansion

set "QUIET="
if /i "%~1"=="/silent" set "QUIET=1"

set "BK=HKCU\Software\KeyAxis\GameBarBackup"
set "BKDIR=%LOCALAPPDATA%\KeyAxis\gamebar_backup"

reg query "%BK%" /v Saved >nul 2>&1
if errorlevel 1 (
  if not defined QUIET (
    echo.
    echo   Nothing to undo - no KeyAxis backup found.
    echo.
    pause
  )
  exit /b 0
)

if not defined QUIET (
  echo.
  echo   Restoring the Game Bar settings you had before...
  echo.
)

for %%P in (ms-gamebar ms-gamingoverlay ms-gamebarservices) do call :RestoreKey %%P
call :RestoreDword "HKCU\System\GameConfigStore" GameDVR_Enabled gcs_GameDVR_Enabled
call :RestoreDword "HKCU\Software\Microsoft\Windows\CurrentVersion\GameDVR" AppCaptureEnabled gdvr_AppCaptureEnabled

REM Remove the backup: the registry record, the exported .reg files, then the
REM parent key. Nothing of ours is left behind.
reg delete "%BK%" /f >nul 2>&1
reg delete "HKCU\Software\KeyAxis" /f >nul 2>&1
if exist "%BKDIR%" rmdir /s /q "%BKDIR%" >nul 2>&1

if not defined QUIET (
  echo   Reverted. Windows Game Bar behaviour is back to how it was.
  echo.
  pause
)
exit /b 0


REM ---------------------------------------------------------------- helpers --
:RestoreKey
REM  %1 = protocol name.
REM    existed=0 -> we created it, so remove it.
REM    existed=1 -> the user already had one and we overwrote its value; drop
REM                 ours and re-import their original export.
set "EX="
for /f "tokens=2,*" %%A in ('reg query "%BK%" /v "existed_%~1" 2^>nul ^| findstr /i /c:"existed_"') do set "EX=%%B"
if "!EX!"=="0" (
  reg delete "HKCU\Software\Classes\%~1" /f >nul 2>&1
) else if "!EX!"=="1" (
  if exist "%BKDIR%\%~1.reg" (
    reg delete "HKCU\Software\Classes\%~1" /f >nul 2>&1
    reg import "%BKDIR%\%~1.reg" >nul 2>&1
  )
)
exit /b 0

:RestoreDword
REM  %1 = key   %2 = value name   %3 = backup value name
set "OLD="
for /f "tokens=2,*" %%A in ('reg query "%BK%" /v %~3 2^>nul ^| findstr /i /c:"%~3"') do set "OLD=%%B"
if not defined OLD exit /b 0
if /i "!OLD!"=="ABSENT" (
  reg delete %1 /v %~2 /f >nul 2>&1
) else (
  reg add %1 /f /v %~2 /t REG_DWORD /d !OLD! >nul 2>&1
)
exit /b 0