How to Fix d3dx9_43.dll is missing in Observer: System Redux

One of the major frustrations of PC gamers is the infamous "[certain.dll] file is missing" type of errors. Often when install Observer: System Redux and try to play it, you will encounter this d3dx9_43.dll file missing error. In this post, we will learn how to diagnose d3dx9_43.dll related error in Observer: System Redux. Once we have diagnosed d3dx9_43.dll error in Observer: System Redux, we will look at various ways to fix it.

  • Developer: Bloober Team, Anshar Studios
  • Publisher: Aspyr
  • Release Date: Nov-10-2020

What You Need to Run Observer: System Redux

Minimum Observer: System Redux Requirements

  • Operating System: Windows 7/10 - 64 bitowy
  • Processor: Intel Core i5-3470 / AMD Ryzen 3 1200
  • RAM/Memory: 8 GB RAM
  • DirectX Version: Version 11
  • Disk Space: 16 GB available space
  • Display Card: @1280x720: GeForce GTX 1050 3 GB / Radeon RX 560 4 GB

How to Fix d3dx9_43.dll is missing error in Observer: System Redux

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_43.dll is missing error in Observer: System Redux is to just download and install the version of DirectX that is required by Observer: System Redux.

Typically, DirectX 9 or 11 do just fine for most video games.

Download DirectX9 here.

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_43.dll

Another way of fixing d3dx9_43.dll is missing error in Observer: System Redux is to simply download d3dx9_43.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_43.dll related errors

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