Auto Screen Lock is a program to lock your computer, so anyone cannot see your work and cannot change your computer's files and configurations. Ctrl+Alt+Del, Ctrl+Esc, Alt+Tab, Windows key, Shortcut keys, etc are disabled while Auto Screen Lock is running. When the computer is resetted or turned off by force, in the next start of Windows, Auto Screen Lock will automatically protect your computer. Because of that, you can configure it as a very-safe screensaver.