I want to reinstall my Windows 8 because there are a few problems with games and stuff I can't fix, but I just wonder if I need a code to do that? I'm not a computer genius, it's weird I know how to install games, and my friend installed this laptop for me (Windows 8 was on it already, so I guess everything's legal) but I don't talk to him nowadays. I don't know what he did or had to do when he installed this. Thanks in advance, and sorry if this is a stupid question. I couldn't find anything about it on the internet, only Windows 7 things.