: If you suspect the file is corrupted rather than missing, you can run the command sfc /scannow
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: If the web installer fails, you can download the DirectX Redist (June 2010) package. This is a full offline installer that overwrites all existing DirectX files, which can fix corrupt installations. : If you suspect the file is corrupted
Run the DirectX Web Installer again to replace the deleted file with a fresh copy. For a visual walkthrough of these fixes: d3dx9_30.dll Missing Error | How to Fix | 2 Fixes | 2021 STS Tutorial YouTube• Sep 26, 2021 Games will not strart, missing d3dx9_30.dll - Microsoft Q&A 2021 Games will not strart