Xbox File Explorer

Hello. Recently my computer has been crashing a lot. I saw on view event logs that it was because of something called slui.exe .

The possible solution of this problem is that my computer isn't activated.

All of my games on Xbox is bought on steam except for one, Forza Horizon 4.

First of all is Forza Horizon 4s content saved on my Xbox account or my computer?

And also where can I find Xbox games on File Explorer?

I would appreciate a very soon answer.

:)