How to Fix d3d9on12.dll Missing Error – Step by Step

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How to Fix d3d9on12.dll Missing Error (Solved)

How to Fix d3d9on12.dll Missing Error (Solved)

What is d3d9on12.dll?

The d3d9on12.dll file is a Dynamic Link Library (DLL) that plays an essential role in the Direct3D 9 to Direct3D 12 translation process on Windows operating systems. This library facilitates compatibility between older software utilizing Direct3D 9 and modern graphics hardware supporting Direct3D 12.

Why is d3d9on12.dll missing?

The d3d9on12.dll file can go missing due to a variety of reasons such as unintentional deletion during system clean-up or software removal processes malware infections that corrupt system files or outdated system drivers that fail to provide the necessary support for the library.

Step-by-Step Fixes:

Method 1: Reinstall Visual C++ Redistributable

The d3d9on12.dll file is often linked to the Visual C++ Redistributable packages. To resolve the missing dll error reinstalling these packages may help:

  1. Navigate to the Microsoft Download Center at: https://support.microsoft.com/en-us/topic/the-latest-supported-visual-c-downloads-2647da03-1e58-4713-9515-d3ab7f47dde9
  2. Select your operating system and download the appropriate Visual C++ Redistributable package.
  3. Follow the installation wizard to complete the installation process.

Method 2: Run SFC /scannow command

The System File Checker (SFC) tool can help repair missing or corrupted system files:

  1. Press the Windows key + X and select “Command Prompt (Admin)” or “Windows PowerShell (Admin)” from the menu.
  2. In the command line type `sfc /scannow` and press Enter.
  3. Follow the on-screen instructions to allow the SFC tool to scan and repair system files as needed.

Method 3: Update System Drivers

Outdated graphics drivers may be responsible for missing d3d9on12.dll errors. Updating these drivers can help resolve the issue:

  1. Press the Windows key + X and select “Device Manager” from the menu.
  2. Expand the “Display adapters” category.
  3. Right-click on your graphics card’s name and select “Update driver.”
  4. Choose “Search automatically for updated driver software” and follow the instructions to complete the update process.

Conclusion

The d3d9on12.dll missing error can be frustrating but with the step-by-step guide provided above you should now have a better understanding of how to address this issue on your Windows system. By reinstalling Visual C++ Redistributable packages running the SFC /scannow command and updating your system drivers you can effectively resolve d3d9on12.dll errors.

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