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Failed to Create D3D9 Device

Many users are experiencing this problem where they receive error “Failed to create d3d9 Device” on their screens, when they open their game or suddenly while playing their game. Gamers are experiencing this problem on many games like Rocket League, Paladins, Smite, etc.

The error message says: Failed to create the d3d9 device. This can happen if the desktop is locked. Exiting….

The major cause for the occurrence of this error is due to the conflict in the resolution of the game you are trying to launch and the current monitor resolution. Other reasons why this problem occurs include the following:

  • Missing or invalid d3d9.dll registry entries.
  • A virus or malware infecting the d3d9.dll file.
  • Microsoft hardware failure.
  • An outdated graphics driver.

Try the methods given below to resolve this issue.

Change Resolution of the Game

  • On your keyboard, press Windows +E.
  • Go to the game’s folder location.
  • Look for the configuration file with a .ini file extension and open it.
  • Change the settings to your current resolution.
  • Open the game and check if the problem has been resolved.

If you’re using Steam to run your game, you can launch it in windowed mode. It is likely that the game will function in this mode, allowing you to change the resolution.

  • Open your Steam client and go to Library.
  • Right click your problem game and click Properties.

  • Type “-windowed” and click OK.
  • Close the Properties window and open your game.
  • If you’re able to launch your game, change the resolution setting in it to your current resolution. If this works for you, you won’t see the error again.

Reinstall DirectX Runtimes

  • Go online and download DirectX End-User Runtimes.
  • Open the installer.
  • Follow the on-screen instructions and complete installing the software on your computer.

Updating Graphics Drivers

  • Boot into Safe mode.
  • Type devmgmt.msc in the Run dialogue box and press Enter.
  • Navigate to Display Adapters, right-click on your adapter and select Uninstall Device.
  • Now there are 2 options. Either you can search online for the latest driver available for your hardware from the manufacturer’s website.
  • For updating manually, right-click on your hardware and select Update driver. Select the first option Search automatically for updated driver software.
  • Select Browse for driver and navigate to the location where you downloaded.
  • Restart your computer, launch the game and check if this solves the problem.
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