This is the most common fix for "Missing d3dx9_.dll" errors. Even if you have DirectX 12 installed, older games (released before 2015) often rely on specific files from DirectX 9.0c or DirectX 11 that might not be present on a fresh Windows installation.
There are three main ways to ensure you have the latest files.
By following these steps, you can ensure your PC is ready to run the latest games and multimedia applications without error.
If you are a PC gamer or use video editing software, you have likely encountered a "DirectX error" or a notification asking you to update your DirectX version. DirectX is a collection of application programming interfaces (APIs) developed by Microsoft to handle tasks related to multimedia, especially game programming and video, on Microsoft platforms.
Here is everything you need to know about what DirectX is, how to check your version, and how to update it.
How to install the latest version of DirectX - Microsoft Support
To update DirectX on modern Windows systems, you simply need to run , as DirectX is built directly into the operating system. Unlike older versions, there is no standalone installer for DirectX 12 on Windows 10 or 11. 1. Check your current version
Follow the steps below in order.
On Windows 10 and Windows 11, DirectX is built into the operating system and is automatically updated via Windows Update. You cannot download or install a "standalone" DirectX 12 update separately. However, older versions (DirectX 9, 10, 11) use legacy runtimes that may need updating for older games.