When the D3DX9_43.DLL gets corrupted or misplaced by malicious software, the application will display the following errors. The program can’t start because d3dx9_43.dll is missing from your computer. The program can’t start because d3dx9_43.dll was not found missing from your computer.
1. Download DirectX Component
Since D3DX9_43.DLL belongs to DirectX, so we can try installing the DirectX component to restore the D3DX9_43.DLL file. DirectX allows applications to communicate with the graphics card to do various things, such as multimedia and game programming. In simple words, it is required by most games and applications to function properly. Hence, try installing DirectX by using the following steps:
2. Manually download the DLL file
You can also try downloading the D3DX9_43.DLL file manually and replacing it with the corrupted one. To do so, follow the steps:
3. Update Your Windows
Updating Windows is also a way to download components that are required by Windows applications and other third-party applications such as DirectX and Microsoft Visual C++. It also helps restore the missing DLL files, so try updating Windows by following the steps.
4. Reinstall a problematic Game or Application
If the problem is still not resolved, you can try reinstalling the application because it is possible that the problem is in your application, causing this error for no reason. To reinstall the application, follow the steps:
5. Use a System Restore utility
D3DX9_43.DLL is located in Windows system 32 and can restore by using a system restore utility. System Restore is a troubleshooting utility that requires a restore point created when you were not encountering any issues. When you create a restore point, it saves the system files, drivers, and registry files into a restore point. So if something unexpected happens, the user will be able to restore the Windows to the previous state. So if you have created a restore point, follow the steps. Otherwise, move on to the next method.
6. Reset Your Windows
If the error still persists, the final solution you can try resetting Windows. Resetting Windows will re-create the system files with the DLL files. Hence, try resetting the Windows using the following steps. Your data won’t remove if you choose the Keep my files option while resetting Windows, but it will delete applications and drivers installed on a system drive.
