KidKeyLock

If you are used to keep the computer on but you don't want anybody to touch it when you are away, agood solution is to lock the keyboard and mouse. KidKeyLock is a lite and useful tool for Windows that allows you to lock the mouse and the keyboard. You can choose if you'll lock the keyboard, the mouse or both two. The program is run in the background in the system tray. Choose what you want to lock, some keys, buttons of the mouse or everything. If you lock it, to have the devices running again you'll have to enter the password and everything will work perfectly again. KidKeyLock can be very useful if you want to keep your computer away from other hands.