i preordered forza horzion 3 and i was super stoked to play it until i realized i needed the anniversary update 1607 to play it. the automatic update was and is still stalled, i tried downloading the update installer from microsoft and that got stuck at 99%. i then called microsoft support to see if they could fix it for me, and they did get the update downloaded and working, however the next time i turned my computer on it reverted to the previous build. i really dont know what to do and any help would be great. thanks.