400-Disable all items

Computer/User Node :

   USER

Policy Path :

   Administrative Templates\Desktop\Active Desktop

Supported on :

   At least Microsoft Windows 2000

Help/Explain Text :

   Removes Active Desktop content and prevents users from adding Active Desktop content. This setting removes all Active Desktop items from the desktop. It also removes the Web tab from Display in Control Panel. As a result, users cannot add Web pages or pictures from the Internet or an intranet to the desktop. Note: This setting does not disable Active Desktop. Users can still use image formats, such as JPEG and GIF, for their desktop wallpaper.

Registry Settings :

  HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop!NoComponents