my computer broke few months ago and i took it to my friend and he fixed it by restoring with his window xp software. Because every time i use to turn on my computer it use to stop at this blue screen which gives me few option and none of those use to work. So after he reinstall the window xp in my computer, i used it for 30 day and now i won’t let me in again because it tell me to register before getting in the computer. So my question is that is that legal if i put my information in there to start computer?