This article details how to check which version of DirectX is installed on your Windows 10 PC.If you aren't sure what DirectX is, it is required by many Windows games to operate properly. If your PC doesn't have the right version of DirectX installed, your game might not work properly. It is very simple to check your version.Here is how to check which version of DirectX is installed:Click on the Start button, typically found at the lower left corner of the screen, and then type dxdiag in the search box that appears. Click on dxdiag to open the DirectX Diagnostic Tool. 2. A new window will pop-up for DirectX Diagnostic Tool. The currently installed version can be found next to "DirectX version" That's it, that is how to check your currently installed DirectX version on your PC.