FIX: D3dx9_43.dll is missing error on Windows 10

Aleksandar Ognjanovic
by Aleksandar Ognjanovic
Troubleshooting Expert
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  • The D3dx9_43.dll is missing error usually affects games and can appear on almost any version of Windows.
  • So, if d3dx9_43.dll was not found, you don’t have the necessary version of DirectX.
  • One solution to fix this is to use third-party DLL fixers or update your video drivers.
  • If d3dx9_43.dll is missing in Windows 10, then an SFC or DISM scan can also help.
DirectX DLL errors
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A variety of DirectX errors that relate to missing DLL files are quite common in Windows 10.

Users that experienced them, have reported that issue emerges straight after they start a game or similar application.

One common error is followed by the prompt that informs users about the d3dx9_43.dll file that’s missing.

We made sure to cover all the possible reasons for this error in order to help you fix it. In order to resolve this problem, you should check the list below.

D3dx9_43.dll is missing error usually affects games, and speaking of this error, here are some common issues reported by users:

  • D3dx9 43 dll missing Windows 7, 8.1, 10 – This issue can appear on almost any version of Windows, and even if you don’t use Windows 10, you should be able to apply most of our solutions.
  • D3dx9_43.dll missing PES 2017, League of Legends, Resident Evil 6, World of Tanks, Street Fighter X Tekken, Oblivion, Black Ops, Far Cry 4, GTA 5 – Apparently this issue can affect many games, and if you encounter this problem, make sure that you install the necessary version of DirectX.
  • D3dx9_43.dll is not found – This is just a variation of the error, and in most cases you can fix it just by updating your drivers.

How do I solve the d3dx9_43.dll is missing error in Windows 10?


1. Use a third-party DLL fixer

Microsoft recommends that users do not tamper with their DLLs unless they truly know what they are doing, and even then it is recommended that they create backups just in case.

In that case, third-party solutions are the next best thing, and we recommend that you give Restoro a try.

DLLs and registries are valuable data libraries that Windows uses in order to run properly. Because of that, damaged or missing dlls or registry keys can be a leading cause for crashes, freezes, error messages, and they can even prevent you from launching software and Windows features altogether. Unfortunately, registries and DLLs are clusters of data that even advanced users have a hard time tweaking properly without guidance, and even Microsoft advices against it. More so, resetting your Windows OS is among the only truly effective solutions to fix these errors, but this solution has far too many drawbacks.
windows troubleshooters
In order to avoid all that, one can always rely on automated third-party solutions, and few are as good as Restoro. It automates pretty much every aspect of your PC repair process, from the scans to the actual fixing. Follow this small guide to learn to you can restore your PC to peak performance using Restoro:
  1. Download and install Restoro.
  2. Launch Restoro.
    • Restoro will now compile data about your PC.
      Restoro first scan
  3. Wait for it to find any system stability issues and possible malware infections.
    • Once the scan is complete, Restoro will show you a summary of your PC’s current status.
      Restoro repair
  4. Press Start Repair.
    • Restoro will now start downloading and replacing and faulty registries, DLLs, and any other damaged files it may have found during the scan.
    • This is possible thanks to the online libraries that is uses for comparison, replacing damaged data with its perfectly functional equivalent.
  5. Restart your PC for all the changes to take effect.
Your PC should now work perfectly fine, and you will no longer have to worry about slow response times, BSoD errors, or anything of the sort. Disclaimer: This program needs to be upgraded from the free version in order to perform some specific actions.

2. Reinstall DirectX

D3dx9 43 dll missing Windows 7

D3dx9_43.dll is missing error message usually appears if you don’t have the necessary version of DirectX installed.

To fix the issue, you can download DirectX directly from Microsoft’s website. You can download the DirectX installer from the Microsoft website.

If you’re having this issue while trying to run a certain 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, and you can find it on installation media or in the installation directory.

Simply look for redist/directx directory and run the setup file from that directory in order to install the necessary version of DirectX.

Once you install DirectX, the problem should be completely resolved. If it did not solve your problem, move to the next solution.


3. Reinstall the problematic program

According to users, d3dx9_43.dll is missing error can sometimes appear due to third-party applications.

Sometimes the application you’re trying to run might not be properly installed, and that can cause this and many other problems to occur.

To fix this issue, it’s advised that you reinstall the problematic application. There are few ways to do that, but the most effective one is to use uninstaller software such as IOBit Uninstaller.

In case you’re not familiar, uninstaller software is a special application that can remove any application, including all its files and registry entries.

If an application is causing this problem to appear, use the uninstaller software to completely remove it.

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 is missing error to appear.

This is unlikely, but just 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 itself.

Sometimes your antivirus can interfere with your system, and in order to fix that, it’s advised to disable it.

If disabling the antivirus doesn’t work, maybe you should remove it and switch to a different antivirus solution.

Bitdefender is a great antivirus that won’t interfere with your system while providing maximum protection, so if you’re looking for a new antivirus, be sure to try Bitdefender.

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5. Check for graphics driver updates

On the other hand, the lack of proper GPU drivers can and will cause similar errors in Windows 10 and earlier Windows iterations.

As you know, DirectX corresponds to GPU and, with their mutual effort, you’re able to enjoy visual effects.

However, if you don’t have appropriate drivers installed, the ones that respond to the current DirectX version, you’ll most certainly bump into this or similar error.

In addition, generic drivers provided by Windows update might be viable for, say, peripheral devices.

When it comes to GPU drivers, your best bet to avoid issues lies in the manual approach and official drivers.

D3dx9_43.dll missing PES 2017

For that purpose, make sure to check GPU drivers and update them properly. If you have an older graphics card, make sure to download Legacy drivers from OEM’s official site.

Just navigate to the manufacturer’s official site, search for your GPU model and download the latest drivers:

If you don’t want to search for drivers manually, you can always download them using third-party software such as DriverFix

The software is rather simple to use, and you can download the missing drivers with just a couple of clicks.

Once you’ve installed proper drivers, restart your PC and give the troubling program another try.

If you are a gamer, photo/video producer, or you deal daily with any kind of intensive visual workflows then you already know the importance of your graphics card (GPU). An outdated GPU driver can lead to massive slowdowns, lag, and fatal errors. Your system won’t always choose the latest manufacturer driver for your graphics card. To make sure that everything goes smoothly and avoid any kind of GPU driver errors, be sure to use a complete driver update assistant that will solve your problems in just a couple of clicks. DriverFix Updater We strongly recommend DriverFix. This is a safe and resource-saving tool that will be your best advisor for this type of operations. Follow these easy steps to safely update your drivers:
  1. Download and install DriverFix.
  2. Launch DriverFix.
  3. Wait for DriverFix to detect all your faulty drivers.
DriverFix Updater Scan
  1. DriverFix will now show you all the drivers that have issues, and you just need to select the ones you’d liked fixed.
DriverFix Updater Results
  1. Wait for DriverFix to download and install the newest drivers.
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  1. Restart your PC for the changes to take effect.
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Disclaimer: this program needs to be upgraded from the free version in order to perform some specific actions.

6. Perform an SFC and DISM scans

  1. Press Windows Key + X to open Win + X menu.
  2. Now select Command Prompt (Admin). If you don’t have Command Prompt available, you can also use PowerShell (Admin).
    D3dx9_43.dll missing League of Legends
  3. Once the Command Prompt opens, enter sfc /scannow and press Enter to run it.
    D3dx9_43.dll missing Resident Evil 6
  4. The scan will now start. Keep in mind that this process can take about 15 minutes, so don’t interfere with it.

Once the scan is finished, the issue should be resolved. If the problem is still there, you might have to use DISM scan. To do that, follow these steps:

  1. RunCommand Prompt with administrative privileges.
  2. Now run the following command: DISM /Online /Cleanup-Image /RestoreHealth
    D3dx9 43 dll missing Windows 10
  3. DISM scan will now start. DISM scan can take about 20 minutes or more, so don’t interrupt it.

File corruption can sometimes cause d3dx9_43.dll is missing error to appear, and in order 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 were unable to run SFC scan before, or if the SFC scan didn’t fix your problem, you might want to run it again and check if that helps.


7. Copy the missing file from another PC

If you keep getting d3dx9_43.dll is missing error 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.

Keep in mind that your friend might not have this file on its PC, so this method isn’t always successful.


8. Install the latest updates

  1. Open the Settings app. The fastest way to do that is to use Windows Key + I shortcut.
  2. When Settings app opens, go to the Update & Security section.
    D3dx9_43.dll is not found
  3. Click Check for updates button.
    D3dx9_43.dll is not found

D3dx9_43.dll is missing error can appear if the application you’re trying to run is outdated. To fix the problem, make sure that the application your trying to run is up to date.

In addition to your application, it’s important to keep your system up to date as well.

If any updates are available, they will be downloaded automatically in the background. Once you download the updates, restart your PC and the updates will be installed.

After your system is updated, the problem should be completely resolved.


That should conclude it. We certainly hope that you managed to resolve the d3dx9_43.dll is missing error with the presented solutions.

In addition, if you have questions or suggestions, make sure to post them in the comments section below.


Frequently Asked Questions

  • D3DX9_43.dll is a Dynamic Link Library (DLL) file, developed by Microsoft, as an essential system file associated with Microsoft DirectX for Windows. Here’s a guide to follow if you can’t install DirectX on Windows 10.

  • D3DX9_43.dll file, also known as Direct3D 9 Extensions, and it is linked to DirectX. If the d3dx9_43.dll file is missing or corrupt, your games won’t run because of DirectX problems.

  • D3dx9_43.dll is missing error message usually appears if you don’t have the necessary version of DirectX installed. Follow our full guide on how to fix the D3DX9_43.dll error.

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