Access Lock is a system-tray security utility, which enables you to lock your PC with a password by two methods. The first one hides your desktop and shows a screen saver while the second one does not hide it allowing others to watch what happens there that is very useful when you would like to demonstrate something to people but do not want them to play with it. It also prevents unauthorized access on boot, logs the attemps of breaking the lock and allows people around to leave messages while the system is locked.