Here is everything you need to know about downloading and updating DirectX from the official source: . What is DirectX? DirectX is an Application Programming Interface (API) suite. Think of it as a translator between your game code and your graphics card (GPU). Without DirectX, developers would have to write unique code for every single graphics card on the market.
If you are a PC gamer, you have likely heard of DirectX . It is a crucial set of components built into Windows that allows software—especially games—to work directly with your video and audio hardware. microsoft.com directx