Hi I'm Deblazz (I'm not very good with english).
I recently bought Forza Horizon 4 and I downloaded it from the ms store, I couldn't even start the gameplay that the entire game crashes.
I start it from the icon, wait for the initial informations, then I say continue (even if I never got after the loading) then it starts to load and crashes to windows with a grey screen (The color of my w10 interface).
I tried with and without dynamic optimization and nothing changed.
I tried switching drivers from the latest available to the 18.9.3 but nothing.
I would really like to play this game, I remember I also had similiar problems with fh3 (after I switched to my gpu, before with my 750ti everything worked flawlessly).
FH4 is the only game that doesn't work.
i5 6400 (4.7ghz)
z170x-gaming g1 gigabyte
16gb ddr4 2133 hyperx fury
r9 fury X
Hope to find a solution asap,
We don't seem to have any similar reports of this issue with Forza Horizon 4.
However a google search does bring up some mentions of the issue on the Forza forums.
I would try a clean install of the game and ensure that your Windows OS is fully up to date.
I would also try starting the game using a Diagnostic startup to see if anything on your system (ie a third party app running in the background) could be causing the crash. How to Enable Diagnostic Startup in Windows 10