Is Call of Duty (COD): Modern War or Warzone crash when you join multiple players? You may have been hit by a dev error 6065.

This small critical issue states that your GPU drivers are to blame, however that is not always the case. Here’s what this error means and what you can do to fix the dev 6065 error.
Dev Error 6065: What does Call of Duty code 6065 mean?
Among the many Call of Duty error codes, code 6065 appears as an annoying error mainly because it appears randomly.
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It often appears as soon as you try to join multiple players, making the game to crash and shut down. Worse still, an error message means that your GPU setup is not compatible.
Causes for COD Modern Warfare Dev Error 6065?
The error is linked to the PC game, and the error is seen in many types of modern war games.
Talking about the likely causes of this problem, there is a lot of it. As your system setting is not enough to run the game, maybe your RAM or graphics are not enough.
Also, the problem with graphics features can cause this Dev Error 6065 error. Users also report that if the game does not run with administrative rights, it throws an error namely:
- Inadequate System Configuration
- Graphics Structures
- Game profile
- DirectX
- Administrator rights
Similar Types of Dev Error 6065 Code Problem
- Dev error 6065 warzone
- Dev error 6066
- Warzone Reddit
- Dev error 6036
- Dev error 5624
- Dev error 6328
- Dev error 6070
- Dev error 1109
How to fix COD Modern Warfare Dev Error 6065
In most cases, Dev 6065 error when playing COD Modern Warfare is due to a problem with the PC or its software.
Contrasting errors that include server problems, this one is generally fixable on a user’s end hence to get rid of Dev Error 6065, we have gathered some answers.
- Use these solutions to correct the error.
- Update everything.
One of the easiest ways to reduce problems when using a computer is to keep the software environment up to date. This is true whether you have a computer that you use to browse the Internet or gamble.
Consequently, the first thing you need to do is start solving the problem by making sure that games, third-party software, and Windows are all updated.
In most cases, programs are set up to check the Internet alone for updates. But, you can always double-check for updates.
- Reinstall GPU drivers.
At times, upgrading graphics drivers is not enough to fix game problems.
If you have already tested the latest GPU drivers but still have a problem, you should consider reinstalling the graphics card drivers to force the system to delete and re-download the drivers. Here’s how to do it:
-In the search box on the taskbar, enter device manager, then choose Device Manager.
-Right-click (or press and hold) Display Adapter, and then select Uninstall.
-Restart your PC.
-Windows will try to reinstall the driver.
- Lower graphics settings of Modern Warfare
For some people, performing simple graphics settings, modification is the key to fixing Dev Error 6065.
If you keep on experiencing this problem every time you load or play COD Modern Warfare, it may be because your system is struggling to use it.
To check if that’s the case, go to the game settings menu and drag all graphics settings down to the bottom.
Basically, try disabling Cache Spot and Cache Sun Shadows settings.
- Manually update Modern Warfare
This solution was shared by one user at the official Activision forum. The solution is likely to delete individual files within the installation folder called Call of Duty Modern Warfare. Here’s how:
– Shut down the Call of Duty Modern Warfare game if you have it running.
-Browse your main Call of Duty Modern Warfare installation folder. The default is usually found in C:\Program Files (x86) but may be different if you have a different installation method.
-Once you have found the Call of Duty Modern Warfare folder, open it.
-Delete all files within the folder excluding Blizzardbrowser, Data, and Main.
– Restart the game by launching it from a Battle.net client.
-If you get the error saying that the game is corrupt, go on with the update option.
- Delete Modern Warfare Data Folder.
Another modified way to force the game is to update itself by simply deleting the data folder and leaving the other folders and files complete. Here’s what:
Shut down the Call of Duty Warzone game when using it.
-Browse your main Call of Duty Modern Warfare installation folder. The default is usually found in C:\Program Files (x86) however it can be different if you have a different installation method.
-As soon as you’ve found the Call of Duty Modern Warfare folder, open it.
-Delete data folder.
– Restart the game by launching it from a Battle.net client.
-Once you find an error that the game is corrupt, proceed with the update option.
- Delete Blizzard Battle.net app.
If you still have Dev Error 6065 at this point, it is not a bad idea to try and uninstall the Blizzard launcher or the Battle.net app.
This will take care of any issue with the program that may be affecting Modern Warfare.
Reinstall Modern Warfare.
If none of the solutions in this guide has helped, you have no other choice but to reinstall Modern Warfare. Keep in mind that redownloading the game is hefty so make sure that you have the time and connected to a fast network
If none of the solutions in this guide have helped you, you have to other choice but to reinstall Modern Warfare. Keep in mind that re-downloading the game is heavy so ensure that you have the time and are connected to a fast network
Bottom Line
What should you do if Dev 6065 error cannot be resolved?
If Dev 6065 DirectX Error encounters an error that cannot be resolved by any means. The only way to solve this problem is to reinstall the game fully.