I assume that uninstalling and then reinstalling my itunes will make it open again, since trying to repair it didn't work, but I'm a little concerned that I might lose my library, or at least the extra info, like the play counts and stuff. If I uninstall itunes, will I lose all of that? Like, will it take these (picutred below) files with it? Or even if it doesn't, do I have to put them back in manually?

Not entirely sure I'm making sense, but basically, what exactly will I have to do if I reinstall itunes?