how do I found out which DirectX version I have?

[WPCentral Question]

I'm going to be loading the new Windows 10 version on my laptop. I have to know if I have DirectX 9 with WDDM 1.0. How do I find out this?

 

[jmshub]

If you open the Run box (WinKey + R) and type dxdiag.exe and press enter, you'll launch the DirectX Diagnostic tool. it will show you your current version of DirectX and WDDM.