[PC] Forza Horizon 4 startup error

Hello everyone,
I am in contact with the Xbox Support for a week now and my problem isn’t solved yet. So I am trying this; because my refund request was declined… From the release of Forza Horizon 4 I am playing it with the Ultimate Edition. Everything worked fine, until last week I got this error on startup. Btw I am playing it on PC.

  • Missing dependent libraries … (Code: FH001)
    Does anybody have a solution, there is no Onboard Graphics to deactivate in device manager.
    Greetings, Thijmen