Check “ Control Panel” > “ Programs” > “ Programs and Features” to see if there are any applications listed that may install a screensaver. If you still have problems, it could be caused by a third-party screensaver applications installed on the computer. If the above steps don’t work for you, you may also want to try to check the following path for the same registry values specified in Step 4:
Also, if you have an entry that says ScreenSaveActive, delete this key as well.
