PowerOff is a simple Windows shutdown utility. You can easily shut down any machine running Windows XP by double-clicking the PowerOff icon on the desktop. PowerOff is actually a shortcut to shutdown. If you put the icon to Quick Launch, you can just shutdown your computer just by using one click. You can do this by dragging the icon named 'Shutdown My Computer' to the Quick Launch taskbar. After that, you're done and ready to shutdown your computer just by one click.