Looking to have fun ?Here is cool windows prank that will make it to where your friend cannot click on anything on the screen.
1) Take a screenshot of the Desktop. Click PrntScr , launch Paint , click Ctrl+v and save your screenshot image or you can use printscreeen software as PrtScr 1.5.0
3) Select printscreen image and click Save changes
4) Windows XP users: Right click on desktop , then click Arrange Icons By->Show Desktop Icons
Windows 7 and Vista:Right click on desktop , then click View->Show Desktop Icons
When you click on the icons, nothing will happen!