Xbox 360 keeps updating
Have you tried booting up without being connected to Xbox Live?
Haven't had the issue since.i found that if you want to play a game, like myself, i wanted to play halo 4 but having the same problems signing in before i could even get to the main screen.
Through a technique called supersampling, the console can render in 4K but shrink the image to 1080p, which significantly reduces object aliasing.
A great deal of the Xbox One X's power goes towards making that happen.
Deeper blacks, brighter whites and more colour detail in-between -- that's what HDR is all about.
You can now see/delete these patches listed as Title Updates if you're browsing your console storage.
Unfortunately, the change wasn't or couldn't be retroactive, so games before that still have the terrible rolling patch system.