When you shutdown the computer was either on?

If you want to know when you shut down, either on the computer all the time. So firstly Click the Start button and then type in the event viewer. Then open the event viewer engaged above all in the window, click it to look conjunction wrote. If you have a Window XP Click the Start button and then open the Run box and press OK to enter it, and type eventvwr.msc.
After the event viewer will open a window to the Windows Log in pen in her left click and then click on System.
After clicking System portion of the window between Skrol Click to relax and look for Event 6006.
Excuse Event 6006, a window will open when you click on the computer in which you wrote last shutdown time and date look solvent.