really. cause when i load game up and go to the first training mission it crashes. also looking at the file size on xbox store page seem game is 14.9gb but i downloaded 9.78gb of game.
Move it to another drive and see if it crashes again. Could be a bad part of the hard drive (sectors not able to be accessed). You could also try resetting your Xbox to factory defaults (you get an option to keep installed games). Your saved games will be in the cloud. I don't remember having any crashes in tutorials.
actually it at point where you start game up to first loading screen then boom crashes to dashboard on xbox one. i uninstalled and remove my save game profile data for that game. now reinstalling it maybe that it fix. if not then i remove it completely and wait for xbox upgrade in future. i know i can play it on pc as well.
The only explanation I can think of is that Series X|S and XB1 versions of TSW2 are listed under a single placeholder in the Microsoft store and that extra 5gb contains enhancements for the newer consoles.
So Series X versions of games tend to have larger install sizes than Series S or XBox One, and I think the advertised install size on the store is the largest possible one.