How to solve the loss of d3dx9_43.dll (share three solutions)

d3dx9_43.dll is a Microsoft DirectX dynamic link library file, which contains a series of functions and interfaces for graphics, audio and input. It is part of DirectX 9 and is used to provide the graphics and sound effects required by games and other graphics applications. If the d3dx9_43.dll is missing in the computer, it will cause many games to fail to open and run. This file is usually installed together with the game or graphics application, and is called at runtime to provide the required DirectX functions.

 

If the d3dx9_43.dll file is missing when running the application, it may prevent the application from running properly. In this case, you can try to install the d3dx9_43.dll file repair tool or update DirectX, or manually copy the missing dll files to the corresponding directory to solve the problem. The following editor will share the detailed operation steps of these three methods with you.

Table of contents

Repair method one, download d3dx9_43.dll repair file

Repair method two, update DirectX

Repair method three: manually copy the d3dx9_43.dll file to the corresponding directory

Reasons for missing d3dx9_43.dll files may include:

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Repair method one, download d3dx9_43.dll repair file

1. You can use a search engine to download the d3dx9_43.dll repair file from the Internet or find the file on Microsoft’s official website to download a d3dcompiler47.dll repair file tool or

Enter at the top of the computer browser: dll repair software.site [Press the Enter key on the keyboard to open] Click the dll repair tool to download. (pro test can be repaired)

 

2. After downloading, it is usually a compressed file. You need to decompress the file first, and then click Repair [Repair Now] after installation. The repaired files are all in the system directory. If your computer is a 32-bit system, move the file to C:\Windows\System32, and if it is a 64-bit system, move the file to C:\Windows\SysWOW64.

 

3. After the repair is completed, you can run the game or software program again to test whether it still prompts that d3dx9_43.dll is missing. Use a computer if you don't have one.

Repair method two, update DirectX

3dx9_43.dll is a dynamic link library file of Microsoft DirectX, which is a part of DirectX 9. We can update DirectX to fix the missing problem of d3dx9_43.dll file.

 

To update DirectX, you can follow the steps below:

1. Determine the currently installed version of DirectX: Press Win+R to open the Run window, type dxdiag and press Enter. In the pop-up system information window, you can see the currently installed version of DirectX.

2. Download the latest DirectX installer: Download the latest version of the DirectX installer from the official Microsoft website or through other trusted download channels. Make sure you download the installer that matches the bitness of your operating system (32-bit or 64-bit).

3. Close all running applications: Before installing DirectX, make sure to close all running applications to avoid conflicts or locked files.

4. Run the DirectX installer: Double-click the downloaded DirectX installer and follow the prompts to install it. You can choose to customize the installation to select the required components for installation.

5. Complete the installation and restart the system: Wait for the DirectX installer to complete the installation process, then restart the computer when prompted for the changes to take effect.

6. Verify DirectX Update: Once the installation is complete, you can run the dxdiag command again to verify that DirectX has been successfully updated to the latest version. Note that updating DirectX may require administrator privileges. Also, make sure to download the DirectX installer from a trusted source to avoid security issues.

Repair method three: manually copy the d3dx9_43.dll file to the corresponding directory

Manually copy the d3dx9_43.dll file to the corresponding directory, you can follow the steps below:

 

1. Locate the d3dx9_43.dll file: First, you need to find a reliable source from which to obtain the d3dx9_43.dll file. This file can be obtained through an Internet search or from a trusted software installer.

2. Open File Explorer: Press Win+E keys, or open File Explorer through the "Computer" or "File Explorer" option in the Start menu.

3. Navigate to the system directory: In File Explorer, navigate to one of the following directories, depending on the bitness and installation location of your Windows OS:

   • For 32-bit operating systems: C:\Windows\System32

   • For 64-bit operating systems: C:\Windows\SysWOW64

4. Back up the existing d3dx9_43.dll file (optional): If there is already a d3dx9_43.dll file, you can choose to back up the file in case something unexpected happens. Right-click the file, select "Copy", then right-click in an empty space in the same directory, select "Paste", and rename it to the backup file.

5. Copy the d3dx9_43.dll file to the target directory: Copy the downloaded d3dx9_43.dll file from the source location to the system directory. Right-click on an empty space in the target directory and select Paste.

6. Confirm replacement file (if necessary): If prompted to replace the existing d3dx9_43.dll file, select "Yes" or "Replace" to ensure that the new file is installed correctly.

7. Completion: Once the copy is complete, you can try to re-run the application that requires the d3dx9_43.dll file to verify that the problem is resolved. Note that manually copying the dll files may require administrator privileges. Also, make sure to get the dll files from a reliable source to avoid security issues.

Reasons for missing d3dx9_43.dll files may include:

1. Uninstalling DirectX: If you uninstalled DirectX, the d3dx9_43.dll file may be deleted.

2. Malware or virus infection: Malware or viruses can delete or corrupt the d3dx9_43.dll file, resulting in its loss.

3. Operating System Issues: Certain operating system issues or errors can cause the d3dx9_43.dll file to be missing or corrupt.

4. Incomplete installation or upgrade: If there was an error or interruption during the installation or upgrade of DirectX, the d3dx9_43.dll file might not be installed or replaced correctly.

5. Third-Party Software Conflicts: Certain third-party software may conflict with the d3dx9_43.dll file and cause it to be deleted or corrupted.

6. Human error: The d3dx9_43.dll file may be accidentally deleted while manually deleting the file or performing other system operations.

​If you find that the d3dx9_43.dll file is missing, you can try to download the d3dx9_43.dll repair file or update DirectX, or manually copy the file to the corresponding directory. These three repair methods solve the problem. I hope I can help you.