Stuck on 100% Installing

I bought my daughter a new XBOX One and a physical copy of Halo 5 for Christmas. I’ve been installing everything on the console for her so she can play it when she gets it on Christmas morning, and the game has been stuck on 100% installed for over an hour. It just stays on the queue on my dashboard and won’t let me open it at all. What’s wrong?

I would first recommend hard resetting the console hold the power for 10 sec or until it shuts off and unplug from the back for another 10 sec.
if that doesn’t work uninstall and restart and it should work a lot of my friends had this same issue and the uninstall and reinstall always fixed it. hope that helps