Prevents users from adding or changing the background design of the desktop. By default, users can use the Desktop Background page in the Personalization or Display Control Panel to add a background design (wallpaper) to their desktop. If you enable this setting, none of the Desktop Background settings can be changed by the user. To specify wallpaper for a group, use the Desktop Wallpaper setting. Note: You must also enable the Desktop Wallpaper setting to prevent users from changing the desktop wallpaper. Refer to KB article: Q327998 for more information. Also, see the Allow only bitmapped wallpaper setting. Fix: (1) GPO: User Configuration\Administrative Templates\Control Panel\Personalization!Prevent changing desktop background (2) REG: HKEY_USERS\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop!NoChangingWallPaper