This one is not actually a famous trick, but very useful to stop windows from shutting down accidentally.Sometimes Windows after reporting an error shows a message that "computer will shutdown in less than a minute". and people have no option other than to wait Restarting again.
To stop this accident shutdown by system or any shutdown:
1. Goto Start > Run. and type "shutdown -a" without quotes.
2. Press Enter and your shutdown will be aborted.
works on windows xp, vista and 7.
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