Fix: ‘D3dx9_43.dll Not Found’ issue on Windows 11/10

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This article will show you how to Fix ‘D3dx9_43.dll Not Found’ issue on Windows 11/10. It’s a problem if your PC displays the “d3dx9_43.dll is missing” error. This problem typically comes after starting a program that needs DirectX to function. If your game won’t run on Windows and you’re getting this error, you need to fix the problem because DirectX is required for gaming. The DirectX software collection includes a large number of files, including the d3dx9_43.dll file. Since most Windows-based games and sophisticated graphics programs use DirectX, d3dx9_43 DLL issues typically only appear when using these apps.

Do you have trouble playing the most popular Windows PC game because “d3dx9_43.dll not found” pops up? By using these do-it-yourself troubleshooting tips, fix it right now. After Microsoft introduced the Universal Windows Platform (UWP) app architecture, gaming on Windows 10 and 11 PCs advanced significantly. On Windows 11 and 10 computers, many classic Windows PC games still depend on certain DLL files to run. Fortunately, there are a few easy Fix ‘D3dx9_43.dll Not Found’ issue on Windows 11/10 and bring back DirectX functionality.

Perform an SFC and DISM Scan

The d3dx9_43.dll missing error message may be caused by faulty system files or tainted files. To fix the damaged, corrupted system files, it is advised to run an SFC scan. To run the built-in SFC command, follow the following. If you want to know more information about this Visit Official Microsoft Website for further Support.

1. Select Command Prompt (Admin) by pressing the Windows Key + X.
2. Type the command listed below and press the Enter key after launching the Command Prompt.
   • “sfc /scannow“
3. Hold off till the scanning is finished.

Check to see whether the d3dx9_43.dll was not found error has been fixed after running the SFC scan. However, if the error persists, you must run a DISM scan by following the instructions listed below:

1. Select Command Prompt (admin) by pressing Windows + X.
2. Type the command shown below into the command prompt, and then press the Enter key.
3. Cleanup-Image/RestoreHealth under DISM Online.
4. The entire DISM scanning procedure will take more than 20 minutes to finish.

Re-register d3dx9.dll with Command Prompt

Try manually re-registering the d3dx9.dll file using the regsvr32 command lines to fix the d3dx9_43.dll is missing problem. Carefully follow the instructions below.

1. Select the Command Prompt (admin) by pressing the Windows key and X.
2. Type the command listed below, then press the Enter key.
   • /u d3dx9.dll in regsvr32
3. To reregister the file, enter the command once more and press Enter.
   • /i d3dx9.dll in regsvr32
4. Finally, restart your computer.

Install the Latest Updates

The d3dx9_43.dll was not found or missing error may appear if the program you are attempting to launch is out-of-date. Additionally, make sure the version of Windows you are using is current. Consequently, follow these instructions to manually check for updates.

1. Hitting the Windows Key + I key on your keyboard, you may access the Settings app.
2. Open the Update & Security section of the Settings app.
3. Click the Check for updates button after that.

Reinstall the Problematic Program

1. Many users confirmed the “d3dx9_43.dll is missing” error appears while running some applications or programs.
2. It might happen the program or application is not installed properly and this is the reason you are getting d3dx9_43.dll error or may get other problems as well.
3. So, here you need to uninstall the application and then reinstall it.
4. Well manually uninstalling the software won’t remove it completely so here it is suggested to go for the third-party uninstaller to uninstall the software completely.

Update Graphics Card Drivers

The problem message “d3dx9_43.dll was not found or missing” might also be brought on by a lack of GPU drivers. Or the problem could be brought on by out-of-date GPU drivers. Therefore, it is advised to look for out-of-date GPU drivers and correctly update them. The most recent drivers are available for download from its official website. To update drivers, adhere to these steps:

1. Press Windows key + R, then type devmgmt.msc in the Run box.
2. From the list, select Device Manager.
3. Then expand the Display Adapters section by clicking on it.
4. Right-click the location of your graphics driver and then select the Update Driver menu item.
5. It instantly begins looking for the most recent driver updates.
6. Restart your machine to finish.

What is d3dx9_43.dll?

This d3dx9_43.dll file, along with MSVCR71.dll and WLDCore.dll, are DLL files that are part of the Windows operating system. To be more precise, Microsoft DirectX includes the d3dx9_43.dll. And it’s primarily employed to make Windows 10, 8, 7, and video games and programs functional. The d3dx9_43.dll error indicates that your computer is being overloaded with data, which causes the d3dx9_43.dll to be faulty or missing. Alternatively, some users may also experience d3dx9_41.dll or d3dx9_42.dll errors; in this case, the solutions for d3dx9_43.dll not found also apply to other DLL file issues.