How to Fix “DX12 is Not Supported on Your System: Try Running Without the DX12 or D3D12 Command Line Argument”

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In this guide, we’ll explore how to fix “DX12 is Not Supported on Your System: Try Running Without the DX12 or D3D12 Command Line Argument”.

If you’ve encountered the error message “DX12 is not supported on your system. Try running without the DX12 or D3D12 command line argument” while trying to launch a game or application, it can be incredibly frustrating. This error is often tied to DirectX 12 (DX12), a technology used to enhance the graphical performance of games. Luckily, there are several ways to resolve this issue.

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What is DirectX 12?

DirectX 12 is the latest version of Microsoft’s API designed to improve multimedia experiences, particularly in gaming. It optimizes resource management for your GPU, allowing for better graphics and smoother gameplay. Many newer games require DX12 for their advanced visual effects and performance enhancements. However, not all systems are fully compatible, which is where the “DX12 is not supported” error comes in.

Common Causes of the DX12 Error

There are several reasons why you may see “DirectX 12 is not supported on your system” or the related message “Try running without the DX12 or D3D12 command line argument.” These include:

1. Outdated Hardware: Not all GPUs are compatible with DirectX 12. If your graphics card is old, it may not support DX12 or D3D12.
2. Outdated Drivers: Even if your hardware supports DX12, outdated drivers can lead to compatibility issues.
3. Unsupported Operating System: DirectX 12 is only available on Windows 10 and above. If you are using an older version of Windows, you’ll need to upgrade.
4. Corrupt DirectX Installation: Sometimes, issues with your DirectX installation can trigger this error.

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How to Fix “DX12 is Not Supported on Your System”

Here’s how to troubleshoot and resolve the “DX12 is not supported” error.

1. Check Your System for DX12 Compatibility

Before anything else, verify whether your system can support DirectX 12.

• Check DirectX Version:
  1. Press Windows + R to open the Run dialog box.
  2. Type dxdiag and press Enter.
  3. In the DirectX Diagnostic Tool, check the version number listed under the “System” tab. If it’s lower than 12, you will need to update your system.
• Check GPU Compatibility: Visit the website of your GPU manufacturer (e.g., NVIDIA, AMD, or Intel) to see if your graphics card supports DX12 or D3D12.

2. Update Your Graphics Drivers

Outdated drivers are one of the most common causes of this error. To fix this:

• For NVIDIA Users: Visit the NVIDIA driver page to download the latest drivers for your GPU.
• For AMD Users: Go to the AMD support page and update your drivers.
• For Intel Users: Download the latest drivers from the Intel Driver & Support Assistant.

Once your drivers are updated, restart your system and try launching the game or application again.

3. Update Windows to the Latest Version

DirectX 12 is supported on Windows 10 and above. If you’re running an older version of Windows, upgrading to the latest OS version is necessary for DX12 support.

• Go to Settings > Update & Security > Windows Update, and click Check for updates.
• Install any available updates and restart your PC.

4. Reinstall DirectX 12

If the issue persists, reinstalling DirectX may help.

1. Visit the official Microsoft site to download the DirectX End-User Runtime Web Installer.
2. Install the latest version of DirectX and restart your computer.

Alternatively, you can also download DirectX 12 from trusted sites like Inzoi, but ensure they are legitimate.

5. Use Command Line Arguments

In some cases, developers provide a workaround where you can run the game or application without the DX12 or D3D12 arguments:

• Modify Launch Options: For Steam games, right-click the game in your library, select Properties, and then in the Launch Options box, type:
  • -dx11 or -d3d11 to force the game to use DirectX 11 instead of DX12 or D3D12.
  This can help if your system isn’t fully compatible with DirectX 12.

6. Upgrade Your Hardware (If Necessary)

If your GPU or system is outdated, upgrading might be your only option to support DirectX 12. Some GPUs known to support DX12 include:

• NVIDIA GeForce RTX Series (e.g., RTX 3060, RTX 3080)
• AMD Radeon RX Series (e.g., RX 6600, RX 6900 XT)

Ensure your hardware is capable of running DirectX 12, especially if you’re playing resource-intensive games like Lords of the Fallen, which often trigger the “DX12 is not supported on your system” error.

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Frequently Asked Questions

Q1: Can I fix the “DX12 is not supported” error without upgrading my hardware?
Yes, you can try running the game or application with DirectX 11 or D3D11 by using the command line arguments -dx11 or -d3d11 as mentioned above.

Q2: Why do I get the error “Try running without the DX12 or D3D12 command line argument”?
This error typically occurs if your system doesn’t meet the minimum requirements to run DirectX 12. This can be due to an incompatible GPU or outdated drivers.

Q3: Is DirectX 12 available on Windows 7 or 8?
No, DirectX 12 is only supported on Windows 10 and later versions. If you’re using an older version of Windows, upgrading is necessary to resolve this issue.

Q4: What games commonly show this error?
Some high-performance games like Lords of the Fallen or The Casting of Frank Stone are known to trigger the DX12 is not supported error due to their high system requirements.

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Conclusion

Encountering the “DX12 is not supported on your system” error can be frustrating, but following the steps above will help you resolve the issue. Whether it’s updating your drivers, reinstalling DirectX, or upgrading your hardware, these solutions should get your games and applications running without a hitch.

By ensuring your system is up to date and meets the hardware requirements, you can avoid the DX12 is not supported on your system error and enjoy seamless performance in your favorite games.

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