OK. I think most of people do not know this method. They can actually shut down their Windows XP in a blink of an eye. No I am not joking! And the fact is you don't need any software's or updates or anything to do this. I'll show you step-by-step.
[Note: This method only works in Windows XP]
1. Click Crtl + Alt + Delete on your keyboard.
By doing this you will get a Dialogue box.
2. In this dialogue box click Task Manager.
3. Close all your programs.
[Read Carefully Now]
4. Click on the Shut Down Menu.
There is this List showing "Stand by" "Hibernate" "Turn Off".........
5. Press and hold the Ctrl Key [Control Key] on your keyboard and click on "Turn Off" [note: do not release the Ctrl key from your keyboard]
click on turn off by pressing and holding ctrl key on your keyboard
OK. That's all !
Its safe to turn off your UPS
There you go. The computer is already shut downed.