• Remove DirectX from your system to fix D3dx9_43.dll
• Remove DirectX from Registry to fix error D3dx9_43.dll
• Uninstall the Program causing Error
• Download Latest Version of DirectX
• Run System File Checker
• Repair Windows Registry

Remove DirectX from your system to fix D3dx9_43.dll

Windows operating system automatically installs DirectX when you start your system. As, d3dx9_43.dll missing error appears when there is problem with version of DirectX installed on your system. Prevent Windows from automatically loading DirectX. Follow the steps given below to do so.

• Open Start | Now right-click on Computer
• Select Properties from drop-down
• Click on System Protection from System Properties
• Now click on C:Drive from Protection Settings | Now click on Configure
• Now click on Turn Off System Protection | OK
• Restart your system

Remove DirectX from Registry to fix error D3dx9_43.dll

After preventing Windows from loading DirectX automatically, try removing DirectX from Windows Registry. Follow the procedure given below to remove DirectX from Registry.

• Click on Start
• Type “Run” in Search Box
• Right-click on Run to Run as Administrator
• In Run box type “REGEDIT” and press OK
• In the Registry Editor GOTO following Registry Key
  HKEY_LOCAL_MACHINE\Software\Microsoft\DirectX
• Remove this Registry Key
• Exit from Registry Editor
• Restart your system

Uninstall the program causing Error

Try uninstalling the program that is causing d3dx9_43.dll error. To uninstall the program, follow the instructions given below.

• Click on Start | Select Control Panel
• Click on Uninstall a Program under Programs in Control Panel
• Select the Program that is causing Error
• Uninstall it
• Follow on-screen Wizard

Download Latest Version of DirectX

d3dx9_43.dll  error can be fixed by downloading latest version of DirectX. Follow the steps given below to download latest version of DirectX.

• Open your browser
• Download latest version of DirectX from Microsoft Downloads
• Restart your system

Run System File Checker

System File Checker is built-in utility that scans and repair system file errors. d3dx9_43.dll can be fixed by running system file checker. Follow the procedure given below to run System File Checker.

• Open Start
• Type “Run” in Search box
• Type”sfc /scanNow” without quotes and press Enter

Repair Windows Registry

Corruption in Windows Registry can cause various errors. Try repairing Windows Registry to fix d3dx9_43.dll. Here is procedure to fix Windows Registry.

• Download and Install System Utility Software such as RegInOut
• Click on Registry Repair feature
• Scan your system file Registry Errors | Fix errors
• Close RegInOut Editor