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The d3dx9_26.dll file is part of DirectX. Most Windows games and graphics programs use DirectX, so errors with this file usually happen when running these programs.
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Windows 98 and later versions can experience d3dx9_26.dll or DirectX issues. Windows 11, Windows 10, Windows 8, and other versions may also have these problems.
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Fix D3dx9_26.dll Errors
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Try these steps in order. The first solutions are easier to apply.
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Avoid downloading d3dx9_26.dll from any “DLL download site.” Getting DLL files from such sites is risky for several reasons.
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If you already downloaded it, delete it from the folder where you placed it. Then, follow the next steps.
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1. Restart Your Computer
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If you haven’t restarted your computer yet, do so now. The d3dx9_26.dll error might be temporary, and a restart could resolve it.
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While this may not always fix the issue, it is a simple troubleshooting step.
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2. Boot into Safe Mode
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If the error prevents you from accessing Windows normally, start your computer in Safe Mode to complete the following steps.
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3. Install DirectX Redist (June 2010)
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Download and install DirectX Redist (June 2010). This package includes the d3dx9_26.dll file, which may fix the missing file error.
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4. Extract the DLL File Manually
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If installing DirectX End-User Runtime does not resolve the issue:
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- Use a file extraction tool to open the downloaded file.
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- Locate the CAB file inside.
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- Extract it and find the d3dx9_26.dll file.
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- Copy it to the folder where the error message says it is missing.
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5. Check for DirectX on the Game or App Disc
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If the latest DirectX version from Microsoft does not help:
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- Check your game or application installation disc for a DirectX installer.
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- Many software developers include a compatible version of DirectX on the disc.
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- Sometimes, the version on the disc works better than the latest one available online.
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6. Reinstall the Game or Software
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Uninstall and then reinstall the game or program that is showing the error. A corrupted file related to d3dx9_26.dll could be causing the issue, and reinstalling may fix it.
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7. Restore the File from the Latest DirectX Package
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If previous steps did not work, try extracting the file manually from the latest DirectX package.
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8. Update Your Video Card Drivers
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Though not a standard solution, updating your graphics card drivers could sometimes fix the DirectX issue. Check for the latest drivers from your GPU manufacturer’s website.
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