Hide “this copy of windows is not genuine” notification in windows 7

Follow this link - http://www.makewindowsgenuine.com/2012/09/how-to-get-rid-of-this-copy-of-windows.html

Procedure to fix "this copy of windows is not genuine" notification:
1) Uninstalling Windows Update from "Uninstall A Program > View Installed Updates"
2) Rearm Windows through command prompt as administrator