I did this to my old windows xp computer. Then My mom seen it and told me to change it back before the computer gets f*cked up. But when the program was installing, I notice it wasnt backing up all my files. So we tried to system restore it but I f*cked that up lol. Then I went to upgrade my driver, and my cd drive would not open. The program deleted all the really important files that could change my computer back to the way it was. Then BOOM! my dad ordered me a Studio computer with Windows 7 on it

Now I can play CoD4, CoD5, LFD2, and MW2 on my computer finally!