Step 1: Right click on your desktop and choose “New=>shortcuts”.
type in “shutdown -s -t 3600” without the quotation marks and click next.
Note: 3600 are the amount of seconds before your computer shuts down. So , this means 3600 seconds = 60 mints (1 hour). You can change the value in the above code. You can even create multiple shutdown shortcuts. For example a computer shutdown shortcut for 30 minutes, 1 hour, 2 hours, 5 hours etc.,
Step 3: Make up a name for the shortcut and you’re done.
Optional Step 4 : You can change the icon by right clicking=>properities=>change icon=>browse
To abort or cancel the shutdown:
To make an abort key to stop the shutdown timer just create another shortcut and make
the “location of the shortcut” to ” shutdown -a” without the quotes.