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8 Ways to Fix D3dx9_43.dll Not Found Error on Windows PC
Reinstalling DirectX from official sources is a quick way to fix this issue
9 min. read
Updated onNovember 5, 2024
updated onNovember 5, 2024
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DirectX errors are pretty common, especially those related tomissing DLL files on Windows 10.
Users who experienced them have reported that the issue emerges immediately after starting a game or similar application.
One standard error is followed by the prompt that informs users about the d3dx9_43.dll file that’s missing. This error can be frustrating, as it affects your games.
In this guide, we have shown nine different ways to solve the issue effectively.
Why is d3dx9_43.dll not found?
There are different variations of this issue with varying causes. Below are some of the common ones:
Additionally, some users have faced issues with d3dx9_43.dll download on Windows 11 devices, d3dx9_43.dll missing on Windows 10, d3dx9_43.dll download on 64 or 32 bit, and d3dx9_43.dll League of Legends.
Let us go straight to the solutions.
How do I fix the d3dx9_43.dll is missing error in Windows 10?
1. Use a third-party DLL fixer app
Microsoft recommends that users do not tamper with their DLLs unless they truly know what they are doing, and even then, they should create backups just in case.
In that case,third-party solutionsare the next best thing because you can use them to perform this task automatically.
2. Reinstall DirectX
The d3dx9_43.dll not found error message usually appears if you don’t have the necessary version of DirectX installed.
If you’re having this issue while trying to run a particular game, you can fix the problem simply by running the DirectX setup file that came with the game. Almost all games come with the necessary DirectX setup file, which you can find on installation media or in the installation directory.
Look for theredist/directxdirectory and run the setup file from that directory to install the necessary version of DirectX. Once you install DirectX, the problem should be resolved entirely. If it did not solve your problem, move to the next solution.
3. Reinstall the problematic program
According to users,d3dx9_43.dll is missingerror that can sometimes appear due to third-party applications.
Sometimes the application you’re trying to run might not be properly installed, which can cause this and many other problems.
To fix this issue, it’s advised that you reinstall the problematic application. There are a few ways to do that, but the most effective one is to useuninstaller software.
These special applications can remove any software from your PC, including all its files and registry entries.
If an application is causing this problem to appear, use the uninstaller software to remove it altogether. A good uninstaller can force remove stubborn and malicious apps without causing any damage to your PC.
Making sure your app is completely removed from your PC usually makes for an error-free reinstallation. Once you reinstall the application, the issue should be resolved.
4. Scan for malware and check your antivirus
According to users, sometimes malware infection can cause d3dx9_43.dll not found error to appear. This is unlikely, but to be sure, we advise you to perform a full system scan and check for malware infections.
If your system isn’t infected, the next cause for this problem could be your antivirus. Sometimes your antivirus can interfere with your system, and to fix that, it’s advised to disable it.
If disabling the antivirus doesn’t work, you may remove it and switch to a different antivirus solution.
And there is no betterantivirus software with trial versionsyou can try than ESET NOD32. This software guarantees your online and offline safety without affecting other processes on your PC.
Also, it detects viruses before they can affect your PC. It might be all you need to fix the d3dx9_43.dll is missing errors on Windows 10 and 11.
⇒Get ESET NOD32
5. Check for graphics driver updates
The d3dx9_43.dll not found error can be caused by an outdated graphics driver. As you know, DirectX corresponds to GPU, and with their mutual effort, you can enjoyvisual effects.
However, if you don’t have appropriate drivers that respond to the current DirectX version, you’ll certainly bump into this or a similar error. Updating the driver should solve the issue in this case.
If you don’t want to use the built-in Windows updater, you can visit the official websites of manufacturers likeNVidia,AMD/ATI, andIntelto download the latest version of the driver.
While there is nothing wrong with updating your drivers manually, there is always the risk of installing the wrong drivers. This can cause a bigger problem than the d3dx9_43.dll not found error.
To prevent this, we recommend using a dedicated driver updater in Outbyte Driver Updater. This top-notch software automatically scans, updates, and fixes broken, outdated, and missing drivers.
It recommends original drivers from trusted manufacturers from its extensive database. And with a whopping 18+ million drivers in its database, you bet it has everything needed to take care of your driver needs.
⇒Get Outbyte Driver Updater
6. Perform an SFC and DISM scans
Once the scan is finished, the d3dx9_43.dll not found issue should be resolved. You might have to use a DISM scan if the problem is still there. To do that, follow these steps:
File corruption can sometimes caused3dx9_43.dll is missingerror to appear and to fix it, the best way would be to perform an SFC scan.
After the DISM scan is finished, check if the problem is still there.
If you could not run an SFC scan before, or if the SFC scan didn’t fix your problem, you might want to rerun it and check if that helps.
7. Copy the missing file from another PC
If you keep gettingd3dx9_43.dll is missingerror message, you might be able to fix the problem by copying the missing file from another PC.
Many websites allow you to download this file for free, but some of these websites can be malicious, so we strongly recommend that you don’t download this file from them.
To fix the problem, it’s always a better idea to copy this file from a friend’s PC.
Remember that your friend might not have this file on their PC, so this method isn’t always successful.
8. Install the latest updates
D3dx9_43.dll not founderror can appear if your PC is outdated. To fix the problem, ensure that you update your PC is updated. The application you’re trying to run is up to date.
In addition, if you are getting the d3dx9_43.dll missing error on a single application like League of Legends, make sure you update the app.
How can I fix the d3dx9_43.dll not found on Windows 11?
If you are facing the d3dx9_43.dll not found error on Windows 11, the causes are similar on other versions of Windows.
To fix the issue, you can update your driver and PC and reinstall the faulty apps. Basically, you can try all the fixes in this guide to solve the problem on Windows 11.
Can I download d3dx9_43.dll?
D3dx9_43..dll is available for download on various websites. You can download and install it from the DLL installer on the official Microsoft website, as shown in this guide.
Also, you can get it from various third-party sites. So, you are not short of quality options.
That should conclude it. We certainly hope that you managed to resolve the d3dx9_43.dll and not found errors with the presented solutions.
If you are facing other issues like theVCOMP140.dll error on Windows 11, check our detailed guide on how to fix it quickly.
In addition, if you have questions or suggestions, post them in the comments below. We recently covered a similar error in ourd3dx9_25.dll is not foundguide, so don’t hesitate to check it out.
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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