Here is a complete guide on how you can fix Dev Error 6456 inCall of Duty Modern Warfare on Windows 11/10 PC. Modern Warfare is one of the most popular games in the Call of Duty franchise. However, it has its own actions of errors and issues. One of such errors is Dev Error 6456 which prevents you from playing the game. If you too are facing the same error, no worries, we got you covered. In this article, we are going to discuss several functional fixes that will help you resolve the error.
ContentsWhat causes Dev Error 6456 in Call of Duty Modern Warfare?How to fix Dev Error on Call of Duty Modern Warfare?Fix Dev Error 6456 in Call of Duty Modern Warfare1]Relaunch Run the COD Modern Warfare game as administrator2]Erase and reinstall game shaders3]Restore recent graphics driver update4]Update drivers as well as Windows5]Reinstall graphics driver6]Disable game overlays7] Verify integrity of Call of Duty:Modern Warfare game files8]Troubleshoot issues in Clean Boot State9]Reinstall Modern Warfare gameHow to fix Dev Error 5573?
Here are some possible causes that could trigger Dev Error 6456 in Call of Duty Modern Warfare:
To fix COD DEV ERRORS 6068, 6606, 6065, 6165, 6071, 6034, 5476, 6635, 6036, 6634, 5763 on Call of Duty Modern Warfare, make sure the Activision server status is up. Other than that, you can update your graphics drivers to the latest version, run Modern Warfare with admin privileges, disable Crossplay, scan and repair game files, or change video memory scaling. If nothing works, try reinstalling the game to fix the error.
Here are the methods you can try to fix Dev Error 6456 in Call of Duty Modern Warfare on Windows PC:
The first thing to do is try to relaunch the game with administrator privileges. If the error is triggering due to missing admin rights or some temporary issue, restarting the game and game launcher with admin rights should help you fix the error. Here's how:
If this method does not resolve the error for you, try the following potential fix to resolve the error.
This error may be the result of a corrupt Modern Warfare Shader cache due to a recent driver update. Or, older shaders may not be compatible with updated drivers and hence the error. If the scenario applies, you should be able to fix the error by deleting and reinstalling the game's Shaders. Here are the steps to follow:
If you started getting dev error 6456 in Modern Warfare right after updating your graphics drivers, it's possible that the error was due to a bug in the update or its incompatibility with the game. If the scenario applies, you should be able to fix the error by rolling back the recent graphics driver update. After that, launch the game again and check if the error is now resolved or not.
Another possible cause for this error can be outdated drivers or Windows operating system. If indeed this is the main culprit, make sure to update all your drivers as well as update your Windows system. After updating the drivers and operating system, relaunch the game on the next boot and see if the error is now fixed. Otherwise, try the following potential solution to fix the error.
You are likely to receive this error code when your graphics drivers are corrupted. Therefore, uninstall then reinstall the graphics drivers and then see if the error is fixed.
Using too many game overlay options can cause the error in hand. So, try disabling game overlays and then see if the error is fixed or not.
To disable Modern Warfare's FPS counter, you can follow the steps below:
You can disable GeForce Experience Share Overlay by following the steps below:
Similarly, you can disable other overlay options in apps like Discord and see if the error is fixed now.
The error can also be triggered if the game files of Call of Duty:Modern Warfare are corrupted or missing. If the scenario applies, you should be able to fix the error by verifying the integrity of the game files. To do so, follow the steps below:
If the error persists, proceed to the next potential fix to get rid of the error.
One of the reasons for this error can be software conflicts with the game. If the scenario applies, you can start Windows in a clean boot state to avoid any application conflicts.
The last resort to resolve the error is to reinstall the Modern Warfare game. It is possible that the game installation is corrupted and this is what is causing the error at hand. So, uninstall then reinstall the game by following the steps below:
I hope you don't receive the same error code again.
To fix Dev error 5573 on Call of Duty Warzone, verify the integrity of your game files, install all COD updates, and install all pending Windows updates. Other than that, you can try performing a clean boot or resetting the game settings.
That's it!