The Sims 2 Help Me Please?

It might do that if you don't have The Sims 2 base game installed. If you do have The Sims 2 base game installed, it might be confused by the three games on only one disk, and I know University is two discs, so it might not have all of the boot info on the burnt copy. You may need to use the original discs from the games instead.... even if it does work on your friend's system. Some computers are more "touchy" about installations than others :P