Now, if you are also getting the same error in Warzone or Modern Warfare, we got you covered. In this post, we will be discussing multiple fixes that have helped users get rid of this error. So, you can also try these fixes and resolve the error.

What is Dev error 6066 Warzone?

Dev Error 6066 in Warzone error is a launch error that occurs when you try to open the game. This error could be a result of a lot of factors. It can be caused due to outdated OS, outdated graphics drivers, lack of VRAM, conflicts with background applications and overclocking. Other potential reasons for the same error could be broken game files or corrupted installation files.

How do you fix Dev errors in Warzone?

The fixes to resolve Dev errors in Warzone completely depend upon the error code you are receiving. Each error code indicates a different cause of the error. If you are getting error code 6066, you can try updating Windows, increasing VRAM, closing background applications, disabling overclocking, disabling in-game overlays, or reinstalling the game.

Fix Dev Error 6066 in Call of Duty Modern Warfare and Warzone

Here are the fixes that you can try to get rid of DEV ERROR 6066, DirectX encountered an unrecoverable error in Modern Warfare and Warzone:

1] Update Windows as well as graphics drivers

This error could be triggered due to incompatibility issues between your OS and the game. Hence, the first thing you should do is to make sure that you have installed all the latest Windows updates and your system is up-to-date. If not, update your Windows to the latest build to fix the error. To update your Windows system, simply go to Settings > Windows Update and press the Check for updates button to download and install the latest updates. Additionally, you should also ensure that you have installed the latest graphics drivers on your system. Faulty and outdated graphics drivers are known to cause errors like this. So, you need to update graphics drivers to fix the error. To update your GPU card drivers, here are the methods you can use:

Use the Optional Updates feature available inside the Settings > Windows Update section. Here, you can find all the optimal updates including driver updates. So, download and install them to update graphics drivers.You can also download the latest version of your graphics driver from the official website of the device manufacturer.

See if updating Windows and graphics drivers help you fix the error. In case you are already using the latest version of Windows and drivers, there might be some other underlying cause of the issue. So, you can try the next potential fix to resolve the error.

2] Increase VRAM

Increasing VRAM may help you get rid of the error at hand as per developers and affected users.  A minimum of 8 GB of RAM is required to run Warzone without any problem. So, if your PC is running out of memory during gaming, enhance virtual memory to fix the error. It is done by converting hard drive sectors into virtual memory. Here is how you can do that: In case you still deal with the same error, go ahead and try the next potential fix to resolve the error. Read: Fix Error Code 664640 in Call of Duty Modern Warfare or Warzone

3] Update DirectX

As the error might be caused due to outdated DirectX version, update DirectX to fix the error. Simply download the most recent version of DirectX from Microsoft.com and then install it. See if this fixes the error for you.

4] Close unnecessary background apps

You might be receiving this error if you have too many apps running in the background. There are chances that the apps interfere with Warzone or Modern Warfare. Hence, it is recommended that you disable all the background applications to fix the error. You can open Task Manager and from the Processes tab, choose the application you want to close. After that, press the End Task button to close it. Do it for all other applications and then see if the error is fixed or not. Read: Fix Dev Error 6034 in Call of Duty, Modern Warfare and WarZone.

5] Disable overclocking

Overclocking is a handy function that speeds up your PC. However, it also causes stability issues with applications and games for some users. So, if you have enabled overclocking, try disabling it by entering the BIOS of your motherboard. See if this fixes the error for you. In case you are not using overclocking and still getting the error, try the next potential fix to resolve it. Read: COD Modern Warfare DEV ERROR 6068, 6065, 6165, 6071.

6] Turn off in-game overlays

This error could also be a result of in-game overlays. Hence, if the scenario is applicable, disable the in-game overlays and then check if the error is fixed or not. You can disable the FPS Counter of Modern Warfare using the below steps: If you have a GeForce graphics card, you can disable the GeForce Experience Share In-game Overlay using the below steps: You can also try disabling the in-game overlay options in apps like Steam, Discord, etc., and see if that works for you. If not, you can try the next potential fix to get rid of the error. Read: Fix Modern Warfare Warzone’s High CPU Usage on PC.

7] Verify the integrity of game files

Another potential cause of this error could be missing or corrupted game files of Call of Duty: Modern Warfare or Warzone. In that case, you can try verifying the integrity of the game files to fix the error. There is a dedicated option provided in Battle.net, the game launcher, that allows you to scan and fix broken game files. Here are the steps to use this feature: If you still get the same error, there is one more fix that you can try. S. move on to the next fix. See: Fix CoD Warzone DEV ERROR 5476 or 6635.

8] Reinstall the game

If none of the above fixes helped you, the last fix you can try is to reinstall the game. There are chances that you might be dealing with corrupted installation files of the game. So, to fix the error, uninstall the game and then reinstall it. You can follow the below steps to do that: Hopefully, this helps!

How do I fix DirectX encountered an unrecoverable error?

PC users that are faced with Modern Warfare (CoD) DEV ERROR 6XXX, DirectX encountered an unrecoverable error while gaming on Windows 11/10, can try our recommended solutions below in no particular order and see if that helps to resolve the issue. Now read:

Fix Dev Error 6456 in Call of Duty Modern Warfare.Fix Call of Duty Warzone Dev Error Code 5573 or 5763.

Fix Dev Error 6066 in Call of Duty Modern Warfare and Warzone - 30Fix Dev Error 6066 in Call of Duty Modern Warfare and Warzone - 93