Hi, Poncherelli.
I'm an old fart, so just ignore me if you wish. But I'd say that it isn't a particularly good idea to be considering the commission of larceny because you're not satisfied with your OS. (Nor is it a particularly good idea for others here to encourage you in this.) Courts are just kicking the living crap out of kids these days. Seems like everyone wants to try a kid as an adult, and the juvenile proceedings are probably bad enough. No, Microsoft isn't about to send you to jail. But the local, state and federal law enforcement authorities have been known to confiscate computers and software from kids and their familiies over issues such as software piracy.
I'd also point out that it's probably your folks who paid for that computer, right? And their stuff is working, right? And they're probably not going to pat you on the head if everything stops working -- at least not if they connect the functional failure to you. Give them a little credit. They may not be quite as stupid as you think. In the interests of familial harmony, perhaps the wise course of action is to wait until you can experiment with your very own computer -- either that or get permission.
There you are, $.02 from the ancient idiot burial grounds.
Regards,
Jim