Alt menu full screen fix for Fs9?

I've installed Win 10 along with Fs9 on two laptops and 7 months later this still isn't fixed. The bug when you are in full screen and you it the alt key to bring up the menu and the whole screen goes dark, if you want to to get to the menu you have to go to windowed mode first. Well this just won't do. Especially if youre running FSNavigator. Win 10 basically breaks Fs9. Any fixes for thia? I'm going to cross post this in the FS9 so hope that's ok. I need to find an answer to this.