Type in “ %ProgramData%” into the Run field and press Enter.

Press Windows key + R to open the Run dialogue box.

Locate the Update agent or agent.exe and click End Process.

While the Blizzard app is running open the Task Manager by pressing Ctrl + Shift + Esc.

This can work if the game crashes randomly, or performs poorly before eventually crashing with the same error.įollow these steps to clear your cache folder: The other thing that you can do with your game launcher is to ensure that its cache folder is cleared.

Click on OPTIONS (middle of the screen, COG/GEAR icon).

Find the COD Modern Warfare or Warzone icon and click it.

Open the Blizzard desktop app on your PC.

Many players who encountered the fatal error in both Call Of Duty Modern Warfare and Warzone fixed it by following these steps: In case the bug is being caused by damaged game files, you can use the Scan and Repair tool in the launcher. To do this, make sure that you close all game processes including the processes for the the Blizzard’s launcher with the Task Manager. Fix #1: Restart the game.īefore you do any advanced troubleshooting, make sure to check if the Fatal Error Unknown Function error will go away if you refresh the game. The Warzone Fatal Error has been around and it usually goes away on its own, especially after an update so it can be a game coding issue.įor some players, Fatal Error in both the Call Of Duty Warzone or Modern Warfare can be an indication of damaged game files, outdated graphics drivers, corrupted cache, or even a connection issue.įor a few others who has COD Warzone or Modern Warfare fatal error randomly, it can also be a sign that their PC may have issues running the game because of an incompatible DirectX version.Ĭheck out the solutions that you can try below to fix this bug. If you can’t access the Call Of Duty Warzone game because it keeps crashing and showing the Fatal Error Unknown Function error code, there’s a set of troubleshooting steps that you can do to identify where the bug lies.

If your Call Of Duty game is crashing because of this error, learn what are the solutions that you can try to fix it below.

To contact customer service support, go to In today’s troubleshooting guide, we’ll address one of the common but annoying bug in the COD Warzone known simply as Fatal Error Unknown Function error code. Many Call Of Duty Warzone and Modern Warfare players are experiencing game crashes for a variety of reason.

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