Are you encountering the dev error 6065 when you play Call of Duty? What to do when you meet the issue? You come to the right place and you can find some simple and effective methods to fix the issue from this post offered by MiniTool.

Dev Error 6065

Call of Duty is a popular game all over the world. However, when you play it, you may encounter the dev error 6065. Call of Duty Modern Warfare dev error 6065 could have multiple reasons. The details are as follows:

  • Outdated graphics driver.
  • Corrupted game files.
  • Interference with third-party programs.
  • PC hardware limitations.

Now, let’s see how to fix the dev error 6065. You can continue to read the following content.

Also see: Call of Duty: Modern Warfare PC Requires 175GB Storage Space

How to Fix Dev Error 6065

Solution 1: Update Graphics Card Driver

You can try to fix the dev error 6065 Modern Warfare by updating the graphics card driver. Follow the steps below:

Step 1: Open Device Manager. Next, expand Display adapters and right-click your graphics card to select Update driver.

Step 2: Select Search automatically for updated driver software and let it finish the process.

select Search automatically for updated driver software

If the above steps were helpful in fixing the issue, you should exit and restart the PC. If not, then continue.

Step 3: Again right-click your graphics card to select Update Driver. This time on the next screen select Browse my computer for driver software.

Step 4: Now select Let me pick from a list of available drivers on my computer and click Next.

Step 5: Finally, select the latest driver from the list and click Next. Let the above process finish and restart your PC.

Then you can see if you have fixed the dev error 6065. If not, continue with the next step.

Solution 2: Disable Full-Screen Optimization

Full-screen optimization makes the game run as a borderless window. This can cause problems with games that are not optimized to use this feature. If this is the reason for dev error 6065 Modern Warfare, you should disable the feature immediately.

You can follow the steps below to disable full-screen optimization:

Step 1: Right-click the Modern Warfare shortcut on your computer and select Open File Location from the pop-up menu.

Step 2: In the game installation folder, right-click on the game executable and select Properties.

Step 3: In the new window, switch to the Compatibility tab and check the Disable fullscreen optimizations box.

check the Disable fullscreen optimizations box

Step 4: Click Apply and OK to save your settings.

After disabling the full-screen optimization, check if the dev error 6065 gets fixed.

Solution 3: Scan and Repair the Game Files

If your game files are damaged, you can also meet the dev error 6065. Thus, it’s recommended to scan and repair the game files. Here is how to do that:

Step 1: Launch the Blizzard application. Then, click the icon of Call of Duty.

Step 2: On the game’s page, click the Options drop-down and then click the Scan and Repair button.

Step 3: Then click the Begin Scan option.

Step 4: Now your game’s files will be scanned and missing/corrupted game files (if any) will be re-downloaded.

After completion of the scanning and repairing process, relaunch the game and check if it is working fine.

Solution 4: Reinstall the Game

The last method for you is to reinstall the game. You can follow the steps below:

Step 1: Launch the Blizzard application and click Call of Duty to open it.

Step 2: Click Options and click uninstall Game.

Step 3: Now follow the prompts of the screen to complete the uninstallation process.

Step 4: Then restart the PC. After that, launch Blizzard and install Call of Duty.

Step 5: After completion of the installation process, launch and play the game to check if the issue has gone.

Final Words

To sum up, this post has shown 4 solutions to dev error 6065. If you have any better solutions to fix it, you can share it in the comment zone.

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