Call Of Duty Modern Warfare 2 Dev Error 5479: How To Fix

As an online multiplayer game, COD Modern Warfare 2 comes with a lot of bugs, issues, and bugs. One of these errors includes Dev Error 5479. You will be prompted with the error message “The application has stopped working unexpectedly in Modern Warfare 2”. You will receive this error when joining or connecting to a multiplayer match. Now, it can be annoying and frustrating to run into such an error. Don’t worry, we’ve put together a few possible workarounds to fix this error. So, check out our guide on how to fix Dev error 5479 in MW2.

How to fix Call of Duty Modern Warfare 2 developer error 5479

You may also encounter Developer Error 5479 between multiplayer matches in Modern Warfare 2. As mentioned, we’ve put together a few workarounds for this error.

Restart your computer or console

Before using any of the methods below, we recommend that you restart your computer or console. You need to exit the game and restart your device. This method has worked for a few players who have experienced this issue. While some players required one restart, some required more than a couple of restarts.

Check out our next method if this method didn’t work for you.

Disable overlays

Several preset and installed overlays may interfere with or conflict with Modern Warfare 2. Various overlays such as AMD Relieve, Razer Synapse, Discord, and Steam may be causing this developer error. So be sure to disable them before starting MW2.

Clear background apps

You can try uninstalling apps or programs that are taking up too much memory. More importantly, uninstall apps that take up too much of your internet. For example, Google Chrome can increase bandwidth and memory (RAM). Some background apps can also interfere with your game.

You can press the keyboard shortcut CTRL + Shift + Del to launch Task Manager. Then you just need to click “End task”to remove unwanted apps or software. In addition to this, we also recommend using an Ethernet rather than a wireless connection for a stable and uninterrupted connection.

Disable Antivirus or Windows Firewall

While these programs protect you from malware or malicious content, they can also prevent the game from running. You can temporarily disable the installed antivirus program and Windows Firewall. Then run MW2 to see if you are facing Dev error code 5479.

Disable Controlled Folder Access

This is a workaround suggested by several players in the COD community. Follow these steps:

• Go to the “Windows Security”section. You can press the shortcut keys CTRL + I to launch Windows Settings.
• Select the “Privacy and Security”option located in the left pane and select “Virus & Threat Protection”.
• Then select the Manage Ransomware Protection option.
• If the Controlled Folder Access setting is enabled, toggle the setting to disable it.

Reinstall COD Modern Warfare 2

If none of the workarounds mentioned above worked, we recommend that you reinstall the game. While this may take a long time, it may fix the error. So, uninstall the game and then install it again. Finally, launch the game to check if the error persists.

In addition, we recommend that you submit a ticket to Activision Support if reinstalling the game did not work. You need to describe and specify the problems that occur when a failure occurs. As a result, they will return to you after a while for help.

This is all about how to fix Dev bug 5479 in MW2. If you liked this guide, check out more Call Of Duty Modern Warfare 2 guides in our dedicated section.