- Open Run dialog box from start menu (or by pressing Windows key + R).
- type shutdown /s /t sec in it.
Here sec is the amount of time in seconds to be elapsed before shut down. - Press Enter or click OK.
- You will be notified that a shutdown is scheduled.
- It is done.
An example is:
shutdown /s /t 600
Here after 600 seconds (10 minutes), the computer will turn off. The following video will show you.