G Security is an easy to use Desktop locker/Screen locker developed for Microsoft Windows. It allows a user to securely lock down Windows in such a way that it cannot be accessed by an unauthorized user. G Security is light weight and easy to use with a highly user friendly interface. It prevents anyone from accessing your computer when its locked down so that your private data stored on the computer cannot be accessed by anyone. It completely locks down your computer so that even if someone gets a hold of your computer, he or she can do nothing on it. It can lock down your computer on start up as well as any time you want just by pressing some keys. Once the computer is locked down shortcut keys will not work at all. The Ctrl+Alt+Del screen will also be secured in such a way that no one can unlock you computer without correct password. Any running application will also be prevented from messing up with the locked computer. It can be used by multiple users at a time.