Any Idea of how one could opgrade or reinstall directx in windows 10 64bit. I have missing dll error in several games an cannot reinstall the games or directx - any one got at solution bether than fully reinstall

Any Idea of how one could opgrade or reinstall directx in windows 10 64bit. I have missing dll error in several games an cannot reinstall the games or directx - any one got at solution bether than fully reinstall.

 

I know reinstall should fix it - but what if it reappears? Is it really not possible to fix directx files in windows 10? I asked the same at MIcrosoft support, but unfortunately they ignore questions about directx