Fix d3dx9_39.dll related errors in Half-Life: Alyx
One of the major frustrations of PC gamers is the infamous “[certain.dll] file is missing” type of errors. Often when install Half-Life: Alyx and try to play it, you will encounter this d3dx9_39.dll file missing error. In this post, we will learn how to diagnose d3dx9_39.dll related error in Half-Life: Alyx. Once we have diagnosed d3dx9_39.dll error in Half-Life: Alyx, we will look at various ways to fix it.
- Developer: Valve Corporation
- Publisher: Valve Corporation
- Release Date: March 23, 2020
What You Need to Run Half-Life: Alyx
Minimum Half-Life: Alyx Requirements
- Operating System: Windows 10
- Processor: Core i5-7500 / Ryzen 5 1600
- RAM/Memory: 12 GB RAM
- Display Card: GTX 1060 / RX 580 – 6GB VRAM
Half-Life: Alyx Gameplay
How to Fix d3dx9_39.dll is missing error in Half-Life: Alyx
Download & install DirectX
DirectX is a bunch of APIs mixed together that handle multimedia related tasks such as playing high fi video games, video and 3D content. One of the basic steps to fix d3dx9_39.dll is missing error in Half-Life: Alyx is to just download and install the version of DirectX that is required by Half-Life: Alyx.
Typically, DirectX 9 or 11 do just fine for most video games.
Download DirectX 9
Download DirectX 11
Often, just downloading and installing DirectX will solve your problem. However, if you are still facing the problem. Let’s move on the next step, shall we?
Download & install d3dx9_39.dll
Another way of fixing d3dx9_39.dll is missing error in Half-Life: Alyx is to simply download d3dx9_39.dll file as per your PC configuration and install it in Windows\System32.
To download file from our secure servers, go to the following page: fix d3dx9_39.dll related errors