Halo 2 PC no longer running because of d3dx9_31.dll
I have had Halo 2 installed on my PC for some time now and have never had any issues. Last night, my PC (running Windows 10) updated. After the update, I can no longer run Halo 2. Upon launch, I receive the following error dialog:
I first re-installed Halo 2 from the disc, then re-installed DirectX 9 (the original version that worked) to no avail. I then downloaded the most recent release of DirectX and that also did not work. As a potential alternative, I manually installed multiple versions of d3dx9_31.dll which furbished no results. Has any one else had this problem? Is there another solution?
Best Answer
You are missing some version of DirectX 9 and as you have already figured out, you need to install it.
The best thing to do is to install the full dx9 redistributable package, which includes every DirectX 9 version ever released.
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How to fix d3dx9_ 31 dll is missing from your computer?
Install the latest version of Microsoft DirectX. Chances are, upgrading to the latest version will fix the d3dx9_31. dll not found error. Microsoft often releases updates to DirectX without updating the version number or letter, so be sure to install the latest release even if your version is technically the same.How do I fix d3dx9 dll is missing?
The d3dx9_25. dll file is one of many files that make up the DirectX software collection. D3dx9_25. dll errors usually appear when a software program utilizing DirectX can't find use that DLL file correctly.What is D3dx9_25 dll missing?
In the vast majority of cases, the solution is to properly reinstall d3dx9_31. dll on your PC, to the Windows system folder. Alternatively, some programs, notably PC games, require that the DLL file is placed in the game/application installation folder.D3DX9_31.dll Missing? How To Fix The Program Can't Start D3DX9_31 is Missing (GTA 4, Sims 3 Error)
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Answer 2
After encountering even more problems involving system files with other applications, I decided to re-install Windows 10. I decided that it would be best to keep my files, but not my settings as I suspected some of them to be part of the problem. After the installation was finished, I had to then re-install some of my drivers from a backup. Unfortunately I never discovered the precise nature of what broke some of my system files, but it would appear that the only real fix is to partially or fully restore the Windows OS.
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