Lock My PC? is an easy in use and compact tool for quick computer locking when you leave it unattended. It shows a lock screen, disables Windows hot keys and mouse. You can lock your PC with a hotkey or from the system tray. To unlock the computer you must enter correct password only. Unlike another similar computer lock software that cannot lock Ctrl+Alt+Del on a computer running Windows XP, our Lock My PC runs own keyboard driver to block such key combinations.

 

Download Link
http://defensive-pro.co.cc/vault/101808/downloads/Lock_My.html