I must say, I really hate this update process. Continually, I have to hard reboot my daughter's machine because she's on a wireless adapter on her desktop (though her laptop doesn't have the same problem- go figure). It will just be on a screen with the chasing dots, and stay there. One time, I tried to just let it go because she was out of town- after days, it was still there. But I hard reboot it (sometimes once, sometimes twice after it goes through it again), and then it says restoring old installation. But eventually the version number does change. Very annoying, as is the fact that it will just shut down your active applications in order to finish the update. I've updated three of the machines here to never restart (which has it's own problems, as the memory profile does strange things if you have a pending update for restart- haven't been able to adequately explain it, other than if I have a pending update, some apps can't get any more memory, and if I restart and let it do it's thing, it's fine), so I might end up updating all of them to block the restart.