Recommend Lock Desktop 2.1

Lock Desktop is an easy-to-use system-tray security utility you can use to secure your desktop when you are away from your computer. Just configure the program, define a password and double click the Lock Desktop system-tray icon every time you need to disable and hide your desktop. While it is locked, the system keys and taskbar are disabled and the mouse cursor is trapped, unauthorized password entries are met with an audio alert and logged to