When was the Last Time your PC was Turned on

Find When was the Last Time your
PC was Turned on.
Go to.
Start >> Control Panel >>
Performance and Maintainence
... Administrative tools >> Computer
management >> Event viewer
Click on the system log and find the
time when your PC was last on
You can now check everything
including when your computer
was On ,Off,Sleeped ,Logged on
and off etc.