Tl;dr NHL 15 update stuck at "installing 100 percent" for day. Tried deleting whole game and reinstalling, stuck at "installing 100 percent" for two days. Help?

Hey guys, so I just recently bought an xbone off a friend with a couple games (destiny, NHL15, forza, and black flag).

All I've done since I got it was log into my live account and played destiny and not a lot mind you I haven't had any days off yet. Destiny has worked just fine, but I tried to play NHL 15 and it needed an update. I was like okay and let it do its thing. It took a while because I have shitty Internet (go Canada!) but when it finally reached 100 percent it stayed there for hours. After like 4 hours I decided to delete and reinstall the whole game because I couldn't get it to play. So I let it run and went to bed.

When I got up it was at 100 percent but still says installing. So I was like okay and left my Xbox on and went to work. Got home, popped it out of standby. Still installing. So I played destiny instead and it says installation paused insert disc or whatever over NHL in games. So I put it in before I went to bed again and repeated the same process. After I got home from work the next day (today) it still says installing at 100 percent.

Like I said my internets a bit shoddy, occasional it'll disconnect and Pop into queued but it'll switch back quickly. It's still "installing" as we speak.

Anyone know what the hell is going on?