Shutdown Timer trick in Windows 7

• Click Start type CMD in the search box. Right click and click open to run Command line.

• Type shutdown /s /t 3600 and Enter.

Note: 3600 are the amount of seconds before your computer shuts down.
So , 60secs*60mins=3600secs Means 1 Hour.

• Windows will display message about shutting down in 60 minutes.

• TO ABORT: type shutdown /a To make an abort and stop the shutdown timer.

• A message will be prompted to you that the scheduled shutdown has been cancelled.