If you look at my posts from 2015, here is what I experienced.
I had the Intel 4400 graphics card, which Microsoft told me would not work, so I purchased from Best Buy a AMD R7 240 and used the Amazon price, and the program still did not work. I called Microsoft again
and after she checked out my computer, she transferred me to another department and during the transfer the system cut me out. Finally on the third call, I got a tech that was able to solve the problem using a scan program that is part of the Windows system.
My suggestion is if you want the Microsoft Flight Simulator X program to work with Windows 10, is to call Microsoft Support (I had used the call back feature, which my calls were returned 5 hours later)
and give them my case number which was 1299988518 which should tell the technician that you contact how they fixed my problem.
The R7 240 is not much better than the Intel 440. take the card back and get a better card which will have much more horsepower. The R7 400 series are better.
https://www.hardcoregames.biz/amd-radeon-r7-200-series/
The R7 240 is Oland which is the same as the ones on the R5 group
https://www.hardcoregames.biz/amd-radeon-r5-300-400-series/
if you have a PCI Express cable on your PSU you can consider the R7 260 which is much better suited for games