I think something is wrong with my Direct X and I would like to UNINSTALL it and re-install it but I fear that I may have to re-install windows to do this... dx*.*, d3d*.* and there are drivers that supply directx features for your graphics card. It does not allow me to repair or modify the current installation.
Over time, we expect that games will build Direct X 12’s capabilities , which will lead to even more impressive gains.
If I select yes it runs fine if I select no Dx Diag hangs and crashes. I have uninstalled all the games and STEAM and reinstalled after a reboot.
I have updated my video drivers and even rolled back my drivers a few just to see if that had something to do with it. link in Add Ram's post, which is this one: Direct X End-User Runtime Web Installer.
These new techniques can lead to a tremendous increase in expressiveness and optimization opportunities.
Typically, when game developers decide to support Direct X 12 in their engine, they will do so in phases.