I know. All I have to do, (I read on Microsoft), is type in add features, and type in a product key, to make it pro. Wow, first I start out with windows 8, then I upgrade to 8.1, then I add features to make pro, and finally, I downgrade. All this to get windows 7 on! But for my sims games, I know every minute will be worth it in the long run.