Been playing Forza 5 for a couple weeks now and today when I turned it on, there was a 325MB update. So I started downloading and it was taking a while so I wanted to cancel and come back later. Canceled the download of the update, and now it's requiring me to "Install the Disc" again, including the original 6GB update which all took roughly 4 hours the first time I did it.
Not sure why it's making me install the disc again. How did it get uninstalled? And have I lost my career progress if the game somehow installed itself when I canceled the latest patch? I really wanted to play when I got home today. Now I'm not looking forward to watching a progress bar for 4 hours.