ScreenLock - Version 1.03.12 ScreenLock is a small utility than runs in the Windows system tray providing basic desktop security and allowing quick and easy management of screensavers. With ScreenLock, you can: Hide the desktop from curious eyes by instantly launching a screensaver with a single mouse click; Keep others from accessing a system by activating a screensaver with password protection enabled; Quickly disable a screensaver; Easily access and change all screensaver settings.