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D3dx9_42.dll is missing on Windows 10/11 [Quick Fix]
You can always rely on high-quality tools to do the work for you
4 min. read
Updated onMarch 26, 2024
updated onMarch 26, 2024
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Key notes
More than a few users run into this or similar problems, especially avid gamers.
They try to start the application or, let’s say a game of some kind, and they’re suddenly prompted with D3dx9_42.dll is missing error in Windows 10.
Even though it looks scary, there’s nothing to worry about.
This is one of many DirectX errors that are quite common for all iterations of the Windows platform, including Windows 10.
So, in case you run into it, make sure to check the solutions below.
How can I fix DirectX error D3dx9_42.dll is missing?
1. Reinstall the problematic program or game
Sometimes, the problem with the d3dx9_42.dll files in Windows 10 may lie in the game or application you’re running, rather than in DirectX.
Such complex programs can easily get corrupted or can suffer from repetitive incomplete files.
On top of that, if we assume that other games or applications are working, it’s simple to conclude what’s the culprit.
In addition, before we move to a complete reinstallation segment, it’s worth mentioning that certain game desktop clients, like Steam or Origin, offer the integrity-checking tool.
With this tool, you can check for the integrity of the installation files and fix possible corruption.
On the other hand, if that’s taking you nowhere, reinstallation should be your next step. Follow the instructions below to reinstall the affected program or game.
2. Use a professional .dll fixer
A dedicated tool can repair your PC by removing files affected by malware and recovering corrupted files. It is also the best solution for fixing d3dx9_42.dll not found errors.
A reason why a professional tool is crucial for your PC is that it has the ability to detect harmful OS files and replace them with fresh components from a comprehensive database.
You can also use it to optimize the registry and most importantly to stop your PC from crashing or freezing.
Some other perks are that it can help you repair those annoying error messages and also recover and replace DLL files.
Moreover, you must know the fact that missing DLL files can be easily found usingan automated repairing tool. Plus, you are able to repair this issue effortlessly.
That being said, take care of any system problems that involve Windows errors by choosing complete PC patching features.
3. Check GPU drivers
Finally, if both of the aforementioned solutions were futile regarding the d3dx9_42.dll is missing error, then all our suspicion gets redirected to drivers.
The outdated or unsuitable GPU drivers can also provoke or similar errors.
They are directly related to DirectX and the functionality of all related applications heavily depends on the GPU properly doing its job.
For more information onhow to update your graphics drivers, we got you covered with a simple guide.
Most of the time, the generic GPU drivers provided via Windows Update won’t suffice. So, in order to get the proper drivers, you’ll need to look at the OEM’s official site.
In the end, after you install the proper drivers, restart your PC, and run the program again.
We hope that this was a helpful read and that, with the included steps, you’ll be able to overcome the D3dx9_42.dll message error.
In case you have questions, suggestions, or remarks, make sure to post them in the comments below.
More about the topics:DirectX,DLL errors
Aleksandar Ognjanovic
Aleksandar’s main passion is technology. With a solid writing background, he is determined to bring the bleeding edge to the common user. With a keen eye, he always spots the next big thing surrounding Microsoft and the Windows OS.
Focused on Windows errors and how to solve them, he also writes about the OS’s latest features as well as its interface.
In his free time, he likes to read, listen to music, and enjoy the nature. Hiking is one of his newly found passions.
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