Any of Microsoft’s operating systems since Windows 98 may be affected by d3dx9_42.dll and other DirectX issues.
This includes Windows 11, Windows 10, etc.
There are a number ofreasons why downloading DLLs like that is never a good idea.
If you’ve already done so, remove it from wherever you put it and continue with these steps.
power cycle your computerif you haven’t yet done so.
load the latest version of Microsoft DirectX.
Chances are, upgrading to the latest edition will fix the error d3dx9_42.dll not found.
Uninstall the game or software program and then reinstall it again.
Try afree uninstaller programinstead to be sure it all gets deleted.
Restore the d3dx9_42.dll filefrom the latest DirectX software package.
Update the driversfor your video card.
Need More Help?
There are several ways d3dx9_42.dll errors can show up on your gear.
However, d3dx9_42 DLL errors are most commonly seen when attempting to play video games.
