Xbox One Why are games keep uninstalling without me knowing? (I would know if I clicked the wrong button)

[Jay Richard Lewis]

I found out after a while the other day that one of my games randomly uninstalled itself (Stranded Deep) so I (feeling annoyed) has to reinstall it. Then, today I found out that another game uninstalled (Call Of Duty Modern Warfare). It took a lot longer than the last game to reinstall because as most people know it is a very big game, I am now still angrily impatiently waiting for it to be reinstalled.