Originally Posted by: leetorts 
Of course it worked. You guys should have had this disabled in the first place. Games cannot disable what you have enabled. You cannot have intel and dedicated graphics enabled at the same time, Not possible. No wonder there are so many issues. PC gaming 101 disable the intel graphics if your CPU has them. Step 2 make sure you are in high performance mode in the power settings. Come on. These are basic things.
Disabling the iGPU corrected the issue for me too, however I disagree that we should be expected to make this change. I have a triple monitor setup, my primary is a 3440x1440 ultrawide and my 1080ti runs that, and then I have the iGPU running my other 2 monitors so that it doesn't tax the 1080ti at all. Every other game I have runs fine with my configuration except for this one, and disabling the aux screens means I can't have all my apps up... Discord, hardware monitoring tools, whatever.
I could of course drive all monitors from the 1080ti but in my testing this increased the GPU temp a minimum of 5-10 degrees at idle. This is my preferred configuration and I think this game should be able to support it like any other, hell I've even played other Forza games with this same configuration and they work fine too. I'm sure they'll get it fixed for the launch.
8700k @ 5 GHz
Asus Maximus X Code (on latest BIOS)
EVGA 1080ti FTW3 (on latest drivers)
32GB Gskill RAM, 3200 MHz CL 14
Windows 10 (on latest release)
Demo is installed on primary OS Samsung m.2 SSD as I've experienced problems storing Windows games on any non-OS SSD's.