Shutdown ur PC after a specified time limit

Right click on your desktop and choose "New=>shortcuts".

Step 2:

In the box that says "Type the location of the shortcut",
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 , 60secs*60mins=3600secs.

Step 3:

Make up a name for the shortcut and you're done.
You can change the icon by right clicking=>properities=>change icon=>browse.

To abort

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.

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Here is another trick to shutdown at a specific time, for example you wish to shutdown at 11:35am. Type this in
CODE
start=>Run

Type Code: at 11:35 shutdown -s


to abort

Code:

shutdown -a

all time is in 24hr