Note: This applies only to the default Login [login.scr] screensaver and is not the same as screensaver selections made in the [Display Properties] property sheet accessed by right clicking on the desktop and selecting [Properties] from the context menu.
[Start] [Run] [Regedit]
Registry Key: HKEY_USERS\.DEFAULT\Control Panel\Desktop
Data Type: REG_SZ [String Value] // Value Name: ScreenSaveActive
Modify/Create the Value Name [ScreenSaveActive] according to the Value Data listed below.
Value Data: [0 = ScreenSaveActive Disabled / 1 = ScreenSaveActive Enabled]
Exit Registry and Reboot
[Source : Windows Xp , Vista , 2000 Registry Tricks Hacks]
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