Search for Drivers in windows 10, the results should list a window in your control panel that shows the different devices. One of those should be the display adapters. Clicking on that should show what display devices are enabled. Right after I updated to Windows 10 it only listed the "Microsoft Basic Display Adapter". Right click on the display adaptor shown and select properties. This will show you what is enabled right now, the driver loaded on my computer was from back in 2006. I have an HP so I used the HP update tool, not windows update, and it installed a different driver, 10.18.15.4248. Not the latest one, it is a year old, but HOI3 now runs much better on a short initial test, scrolls smoother and no obvious delay in game play and I can change resolution now. I have not actually played since I installed the new driver. When I check the control panel, through the systems and devices tab/display adapters tab, it now shows HD 4600 as the graphics card so it is at least recognizing my card now. So I recommend trying windows update again. If that fails try your computer manufacturer's update mechanism, either on board your PC or at their website. Lastly you could contact the computer manufacturer or Microsoft directly and see if they have some advice.
Since I am a Geneticist, not a computer expert by any means, I cannot in good conscience tell you to go in and make changes on your own. Any advice from me would be highly suspect which is why I advised going through Microsoft or the manufacturer. Someone with much more expertise than I have could comment on things to do but I am not qualified beyond saying what I did and urging caution. Also I could easily have gotten the terms or tab listings wrong in the text above as I am not near my computer right now, I am at work, but the gist is that try and find out what driver you are running right now and see if it is out of date. The web is good for finding out details on drivers or problems other people have had but you have to watch out with advice from anyone not affiliated with the corporation that made the product.