SET SHUTDOWN TIMER

Setting a timer to shutdown the computer is very helpful for lazybones like me.We often listen to music,download and keep the computer on and go to bed.The computer remains on the whole night and consumes electricity. So to prevent this You dont need to do much just follow the step and you are done..

Go to RUN and input this command
shutdown -s -t 3600

And press Enter.See its so simple.The command should be typed exactly as mentioned above with necessary spaces or else it wont work.The above command shutsdown the computer in 1 hour.Note the time for the computer to shutdown should be in seconds so you might need a calculator aswell.
To cancel the shutdown
Goto RUN
Type  shutdown -a
Enjoyyyyyyyyyyyyyy!!!!!