Steps :
o Click Start type CMD in the search box. Right click and click open to run Command line.
o 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.
o Windows will display message about shutting down in 60 minutes.
o TO ABORT: type shutdown /a To make an abort and stop the shutdown timer.
o A message will be prompted to you that the scheduled shutdown has been cancelled.
o Enjoy.
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