Anybody Want to change default wallpaper and user picture of Windows 7? I got it. Name your Wallpaper to mg0.jpg and Profile picture to user.bmp (maybe 128x128). Now add the following commands to SETUPCOMPLETE.cmd file. Spoiler ren "%ProgramData%\Microsoft\User Account Pictures\user.bmp" Old_User.bmp copy "%~dp0user.bmp" "%ProgramData%\Microsoft\User Account Pictures" ren "%windir%\web\Wallpaper\Windows\img0.jpg" imgo_old.jpg copy "%~dp0img0.jpg" "%windir%\web\Wallpaper\Windows" Put the files to $OEM$\$$\SETUP\SCRIPTS directory. That’s all.