In this instructable i will show you how to turn your windows 7 into windows xp (it can be used as a prank) but you can still use everything the same way. by the way the thing in the top right hand corner is an acer touch portal thing. i have it because my computer is touch screen. :D
Step 1: doing what you need to do
now you need to go into control panel then select appearance and personalization then select change theme.