I can't open your .png
I can only assume getting "troubleshoot compatibility" is so easy you get past that, tried copying everything to a folder? changed property etc? run as admin.
And there are ample threads on how to install an AMD driver: Driver Sweeper / Device Manger / unzip etc.
Dinner and done for today for me...
Maybe at step 4, when it ask's to restart, DON'T, just insert the USB stick and install those drivers and see if they will overwrite the DVD ones?
I'm not sure, but can you boot from the Windows disk and see if it will let you install drivers from another source? Like your USB disk?
Wait a minute, wait a minute, you have me puzzled, what drivers would that be? And when do (did) you install them in the installation?
.......................I have had a lot of trouble thus far even getting my iMac to run boot camp, but I now have Windows installed through the graphics drivers on USB Drive fix from the Apple Support article. ......................