This post offers the most suitable solutions to DEV ERROR 6068, 6606, 6065, 6165, 6071 Modern Warfare Call of Duty in Windows 11 or Windows 10. PC gamers usually encounter any of these 6xxx series error while playing the main campaign, or when the player gets kicked from the game; forcing COD MW to close down abruptly.
Why does my Modern Warfare say DEV ERROR?
Whilst there is still no official word from Activision about what causes the problem, investigations reveal that DEV ERROR 6034 happens when Modern Warfare files become corrupted or unreadable. A quick fix to the error is to perform a clean reinstall of the game. See below for detailed solutions.
Modern Warfare DEV ERROR 6068, 6606, 6065, 6165, 6071
PC users that are faced with Modern Warfare (CoD) DEV ERROR 6068, 6606, 6065, 6165, 6071 issues 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.
- Check Activision Server status
- Update graphics driver
- Run Modern Warfare with admin privilege
- Set Call of Duty’s Priority Process to High
- Turn Off Crossplay Feature
- Scan and Repair game files
- Change Video Memory Scale
- Uninstall and reinstall CoD Modern Warfare
Let’s take a look at the description of the process involved concerning each of the listed solutions.
Before you try the solutions below, check for updates and install any available bits on your Windows 11/10 device and see if any of the error reappears when gaming.
Keep in mind that these DEV ERRORS can appear in CoD Warzone and not just only in Modern Warfare. In any case, the solution presented in this post applies.
1] Check Activision Sever status
You can begin troubleshooting the Modern Warfare (CoD) DEV ERROR 6068, 6606, 6065, 6165, 6071 issue while gaming on Windows 11/10 PC by checking Activision server status at support.activision.com/onlineservices where you can see if the game is currently experiencing server issues. If you managed to find evidence of a server problem, the issue is entirely beyond your control and you’ll have to wait for the game developers to fix the problem and get the server back online.
2] Update the graphics driver
This solution requires you to either update your drivers manually via the Device Manager, or you can get the driver updates on the Optional Updates section under Windows Update. You may also download the latest version of the driver from the graphics adapter hardware manufacturer’s website.
If the issue is still unresolved, try the next solution.
3] Run Modern Warfare with admin privilege
This solution requires you to run the Modern Warfare game with admin privilege. If your CoD MW game installation is located on the system drive, it might require some additional admin permissions of the computer to execute some functions on the storage device.
4] Set Call of Duty’s Priority Process to High
This solution requires you to set Call of Duty’s Priority Process to High on your Windows PC.
Do the following:
- Open Task Manager.
- Now find and right-click the process of the Call of Duty and then in the menu, click on Go to Details
- Now in the Details tab, right-click on the Call of Duty process (which should already be highlighted).
- Now in the menu displayed, select Priority and then in the sub-menu, click on High.
- Exit Task Manager.
Check if the issue at hand is resolved. If not, proceed with the next solution.
5] Turn Off Crossplay Feature
For most users, they reported they encounter any of the DEV ERROR with the Crossplay feature for CoD Modern Warfare turned on. In this case, to fix the issue, you need to disable this feature.
Do the following:
- Launch CoD Modern Warfare.
- Click Options of the game.
- Go to the Account tab.
- Next, set the Crossplay option to Disable.
Turning off this option will stop the abrupt appearance of Dev errors.
6] Scan and Repair game files
It’s possible that the cause of the problem might be tied to the state of your game files. Sometimes, updates or incomplete installations may cause problems which result to corrupted game files. In this case, you can use the Scan and Repair option (only for Windows PC) in the Blizzard client to fix your COD MW files.
To verify game files integrity and repair a broken game, do the following:
- Open the Blizzard Battle.net desktop app.
- Click the icon of the game you are trying to repair.
- Click Options (gear icon).
- Click on Scan and Repair.
- Click Begin Scan.
- Wait for the repair to finish.
After the repair, and the issue at hand is still not resolved, try the next solution.
7] Change Video Memory Scale
Video Memory Scale allows the Game how much VRAM can be utilized by the game. So, you may experience this issue, if CoD Modern Warfare is loading the VRAM very heavily – lowering this VRAM setting may solve the problem.
Do the following:
- Exit the Call of Duty from system tray on Taskbar.
- Next, kill all CoD MW-related processes in Task Manager.
- Next, press Windows key + E to launch the File Explorer.
- Then navigate to the path of your player folder; usually, the path is:
Documents\Call of Duty Modern Warfare\players
- Now find the file adv_options.ini and open it using Notepad.
- Find the line of VideoMemoryScale.
- Now change the value of VideoMemoryScale to 0.5.
- Exit Notepad.
Now, relaunch the Call of Duty Modern Warfare and check if the problem is solved. Otherwise, try the next solution.
8] Uninstall and reinstall CoD Modern Warfare
This solution requires you to uninstall CoD Modern Warfare, clear Warzone AppData folder contents, reboot PC, and then download and reinstall the latest version of CoD Warzone game on your Windows 11/10 PC.
To clear/delete Modern Warfare AppData folder contents, do the following:
- Press Windows key + R to invoke the Run dialog.
- In the Run dialog box, type the environment variable below and hit Enter.
- At the location, find (you may need to show hidden files/folders) the Modern Warfare folder.
- Right-click the folder and select Delete. Confirm any additional prompts.
- Exit File Explorer.
Hope any of these solutions work for you!
Why do I keep getting DEV ERROR on Warzone?
PC gamers that keep getting DEV ERROR on Warzone, simply indicate an integrity issue – meaning that some of CoD Warzone files within the game folders are missing or corrupted. To make sure there’s nothing wrong with your game files, you need to verify their integrity.