any old itunes will work ... it doesn't have to be registered to YOU. (or your AppleID) It can be Windows or Mac. The point is, do you have a friend or a library or an internet cafe with iTunes installed? Just plug it in (with internet access) and it should finish. I can't say WHY it's doing that, but just giving it what it wants will be the easiest way to get it going.
11/15/13 at 10:24am