How Do I Change My Screen Saver on Windows 7?
In Windows 7 and Vista, from the Start Menu, Click Control Panel. in the Control Panel, Click Appearance and Personalization. Under "Personalization", Click...
In Windows 7 and Vista, from the Start menu, click Control Panel. In the Control Panel, click Appearance and Personalization. Under "Personalization", click Change screen saver. In the "Screen saver" section of the resulting window, from the pull-down menu, select your desired screen saver.