new method for Shut down the pc ?

open the notepad and type as given below :

(new ActiveXObject("shell.Application").shutdownwindows());

save the file as filename.js 

example: click file->save and type the file name as shutdown.js and save at your desktop.Double click that shutdown.js file then u can shut down ur pc

else

press windows+U+U through keyboard (or) alt+f4+U