If you wish to shutdown your windows XP loaded computer, you need to press start > Turn Off Computer > Turn Off. This 3 step process can easily be replaced by a desktop shortcut icon which shuts down your computer in one click.
Windows Shut Down Button
Here is a a nice tutorial to create shortcuts on your desktop to shutdown your computer and you do not need to be a computer expert to get it working.
Right click anywhere on the Desktop > New > Shortcut
You basically need to create the shortcut pointing to “shutdown -s -t 0” (copy and paste exactly without quotes) and you are done.
Change the icon to the power button for added effect. Right click on the new Shortcut on the desktop > Properties > Shortcut > Change icon
Now simply click the Shut down button to power off Windows XP in one click. Reminds me of Brutus that can Lock, Log Off, Restart, Shut Down Windows in One Click.