Have you ever encounteredDev Error 11557in Call of Duty: Modern Warfare 2 or Warzone 2?
If you are, you come to the right place.
In this post,MiniToolprovides some potential solutions to help you fix this error.

Call of Duty is a first-person shooter video game franchise published by Activision.
Its popular around the world.
However, although the game is good, the players also encounter different errors when they play it.
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Before trying the following methods, youd better try these two ways of fixing this error on your PC.
They are: Restart the game and your gear and spin up the game as an administrator.
If they dont work for you, yo continue reading and try the other solutions below.
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Method 1.
Here are the detailed steps:
Receive the error that says No Bootable unit on your Acer laptop?
Here’s a full guide that provides reasons and solutions to this error.
Method 2. you might have a try.
Here are the steps:
Method 3.
So, you might try updating them to fix this error.
To do that, it’s possible for you to refer to these posts:
Method 4.
Close Unnecessary Background Programs
Sometimes, the background programs may also cause errors, like Dev error 11557.
In this situation, you might try closing all unnecessary background programs to fix the error.
Method 5.
Check the Internet Connection
Dev error 11557 can also be resulting from issues with your internet connection.
They are:
Method 6.
Update the Game
Updating the game can also fix the errors sometimes.
Method 8.
Here are the steps:
Method 9.
So, you might try disabling the overlay to fix this error.
Method 10.
If you are interested in it, it’s possible for you to visit its official website.