@echo off
cd /d "%~dp0"
if not exist "%AllUsersProfile%\Desktop\PICT-R.bmp*" copy /Y "PICT-R.bmp" "%WINDIR%\Web\Wallpaper\PICT-R.bmp" >nul
reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /v Wallpaper /t REG_SZ /d "%WINDIR%\Web\Wallpaper\PICT-R.bmp" /f >nul
reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /v WallpaperStyle /t REG_SZ /d 2 /f >nul
reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /v TileWallpaper /t REG_SZ /d 0 /f >nul

RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters