GPU Driver Clean Install & DDU Companion

@echo off
:: ==============================================================
:: GameFixDB.com - GPU Clean Install & Safe Mode Assistant
:: Target Hardware: NVIDIA GeForce
:: Microsoft-sanctioned non-destructive batch helper
:: ==============================================================
echo ===================================================
echo [GameFixDB] Starting Clean GPU Environment Setup...
echo ===================================================
echo.

:: 1. Administrative Check
net session >nul 2>&1
if %errorlevel% neq 0 (
    echo [ERROR] Administrator privileges required!
    echo Please right-click this script and select 'Run as administrator'.
    pause
    exit /b 1
)

:: 2. Prevent Windows Update from Overwriting Drivers on Reboot
echo [*] Disabling Windows automatic hardware driver replacement...
reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate" /v "ExcludeWUDriversInQualityUpdate" /t REG_DWORD /d 1 /f >nul 2>&1

:: 3. Clear Stale Shader Caches
echo [*] Purging corrupted DirectX & Vulkan shader cache...
if exist "%LOCALAPPDATA%\NVIDIA\DXCache" (
    rmdir /s /q "%LOCALAPPDATA%\NVIDIA\DXCache" >nul 2>&1
    echo [+] Cleared %LOCALAPPDATA%\NVIDIA\DXCache
)
if exist "%LOCALAPPDATA%\D3DSCache" (
    rmdir /s /q "%LOCALAPPDATA%\D3DSCache" >nul 2>&1
    echo [+] Cleared D3D Shader Cache
)

echo.
echo ===================================================
echo Windows driver block and shader caches cleared.
echo.
echo READY FOR SAFE MODE REBOOT:
echo 1. Download official DDU from Wagnardsoft.
echo 2. Disconnect your internet (unplug Ethernet or disable Wi-Fi).
echo 3. Boot to Safe Mode and run DDU 'Clean and restart'.
echo ===================================================
pause