DirectX are playing a major role in Multimedia applications such as Games, Videos, HD Videos, 3D Rendering etc., Especially those who are playing games this is very important to render 3D games smoothly as well as get a crystal quality graphics.
There are plenty of Versions out there you can download the latest version from Microsoft Website.
In this post I am going to teach you How to check DirectX version in Windows 8/7/Vista/XP (Basically all the Windows Versions).
Its very simple, All you have to do is just open the RUN dialog and type dxdiag then Enter to see the DirectX version Installed in your Windows Operating System.
There are plenty of ways you can open RUN dialog box:
Simple method is Windows Key + R
You will get the below dialog box, then type dxdiag and hit Enter:
Within a sudden DirectX Diagnostic Tool will open and start loading the computer configurations. You can see the below screen shot showing DirectX version installed (marked in green):