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How to fix MW2 Dev error 6146?

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Call of Duty: Modern Warfare 2019 | Features, price and pre-orders

Call of Duty Modern Warfare 2 needs no introduction. It is one of the most popular first-person shooter games available on the internet.

If you are seeing Dev error 6146 on Modern Warfare 2, here are 7 fixes that you can try.

Verify game files (on Steam)

Verifying the game files allows the client to scan and inspect the game files on your computer. If any file is found to be damaged or corrupt, the client downloads the file promptly thereby fixing the error. Thus, verifying the game files should be your first option.

Step 1: Head over to your Steam Library, right-click on Victoria 3 and select Properties.

Step 2: Head over to the Local Files tab.

Step 3: Click on Verify integrity of local files… and let Steam do its thing. 

We hope that by following the above steps, you will successfully resolve the general error in Moden Warfare 2. This is just a reference screenshot.

Also read: How to fix Victoria 3 general error?

Verify game files (on

Step 1: Click on the All games option and then select Modern Warfare 2.

Step 2: Click on the gear icon next to the play/update button and then select Scan and Repair from the menu.

Step 3: Confirm the process by clicking on Begin Scan.

Run the game as an administrator (Windows 11)

To run Modern Warfare 2 as an administrator, follow the steps given below:

Step 1: Locate the game and then right-click on the game launcher.

Step 2: Select Run as administrator.

This will surely fix the issue.

Check with third-party applications and websites

It might happen that the game’s servers are down. To check the servers, you can go to Downdetector or a similar website.

You can also try to check with your Internet Service Provider for any information relating to an internet outage in your area.

Also read: How to fix Darktide backend error: Error signing in? 

Reinstalling the game

Call of Duty: Modern Warfare 2019 | Features, price and pre-orders

Uninstall and then reinstall the game to fix the errors. However, if you are not into the technicalities, then all the game files will be lost and you will have to play the game from the start. So, this method should be your last resort.

Also read: How to fix MW2 error code 0x887a0005L?

Update the game

Updating the game will fix the bugs. So, if you are playing the outdated version, you might see the error.

Restart the launcher and PC

Usually, restarting the launcher, be it Steam or some other launcher, fixes the issue. Just close the game launcher and then restart it again. Most probably, the issue will be solved. You can also restart your PC.

We hope that by following the above fixes, you will be able to surely resolve the Modern Warfare 2 Dev error 6146.

Also read: How to fix MW2 travis-rilea error? 

Kumar Hemant

Kumar Hemant

Deputy Editor at Candid.Technology. Hemant writes at the intersection of tech and culture and has a keen interest in science, social issues and international relations. You can contact him here: