Fixed – Call of Duty Modern Warfare 3 Error Code 0x00001338 (12488) N

0x00001338 (12488) N

As one of the hottest first-person shooter game, Call of Duty Modern Warfare 3 is available on PS4, PS5, Xbox, Battle.net, and Steam. However, at times, some error codes like 0x00001338 (12488) N might appear unexpectedly, preventing you from enjoying the game. The complete error message is:

The Application has unexpectedly stopped working.

Allow Steam to Verify the integrity of your game files the next time you start the game. The process will take a few minutes but it might solve your current issue.

Error code: 0x00001338 (12488) N

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How to Fix Call of Duty Modern Warfare 3 0x00001338 (12488) N?

Preparation Before Proceeding

• Restart your computer and relaunch the game.
• Disconnect all the unnecessary external devices.
• Run the game with administrative rights.
• Terminate resource-hogging third-party programs in Task Manager.
• Close all the overlay apps.
• Disable antivirus software temporarily.
• Close online storage services such as OneDrive and Google Drive.

If error code 0x00001338 (12488) N still exits after applying all the tips above, scroll down to find more advanced solutions.

Fix 1: Move Files from _Retail_ to Content

According to many users in other forums, moving files from the _retail_ folder to the Content folder works for them. Here’s how to do it:

Step 1. Press Win + E to open File Explorer.

Step 2. Navigate to: C:\Program Files (x86)\Call of Duty\_retail_.

Step 3. Inside the _retail_ folder, copy these folders: cod23, D3D12, main, telescopeCache, telescopeStorage, telescopeVideoCache, xpak_cache. Then, paste them into the Content folder (C:\XboxGames\Call of Duty\Content).

Step 4. Select Replace the files in the destination to confirm this operation and wait for its completion.

Fix 2: Verify Integrity of Game Files

Another way to fix error code 0x00001338 (12488) N is to scan and repair the game files. To do so:

On Battle.net

Step 1. Open the Battle.net launcher.

Step 2. In the Games tab, hit Call of Duty Modern Warfare 3.

Step 3. In the lower left corner, click on the gear icon beside the Play button and select Scan and Repair.

On Steam

Step 1. Launch the Steam client and find the game in Library.

Step 2. Right-click on the game and select Properties.

Step 3. In the Installed Files tab, hit Verify integrity of game files.

Fix 3: Repair or Reset the Game

Repairing or resetting the game can fix most game issues like 0x00001338 (12488) N. Follow these guidelines:

Step 1. Press Win + R to open the Run box.

Step 2. Type appwiz.cpl and hit Enter to open Programs and Features.

Step 3. In the app list, find Call of Duty Modern > hit the three-dot icon > select Advanced options.

Step 4. Scroll down to find Repair under Reset and hit it.

Step 5. Once done, relaunch the game to see if 0x00001338 (12488) N is gone.

Fix 4: Check for Windows Updates

To run the game smoothly without error code 0x00001338 (12488) N, you had better download and install the latest Windows update. Here’s how to do it:

Step 1. Open Windows Settings and go to Update & Security.

Step 2. In the Windows Update tab, click on Check for updates and then Windows will start to look for any available updates for you.

Fix 5: Delete Cache Files in Microsoft Store

Corrupted cache files in Microsoft Store can also trigger errors like Call of Duty Modern Warfare 3 error code 0x00001338 (12488) N. Therefore, deleting these files might also do the trick. Here’s how to do it:

Step 1. Open File Explorer.

Step 2. Navigate to the following path: C:\Users\Username\AppData\Local\Packages\Microsoft.WindowsStore_8wekyb3d8bbwe

Step 3. Find the LocalCache folder and right-click on it to choose Delete.

Fix 6: Check Time & Region

Incorrect time and region settings might be another culprit of MW3 crashing error code 0x00001338, so make sure your time and region are set correctly. To do so:

Step 1. Press Win + I to open Windows Settings and select Time & Language.

Step 2. In the Date & time section, toggle on Set time automatically & Set time zone automatically and hit Sync now.

Step 3. Go to the Region section and select your country.

Also see: Set Time Zone Automatically Greyed Out in Windows 11

Final Words

That’s all you can do to fix Call of Duty Modern Warfare 3 error code 0x00001338 (12488) N on Windows 10/11. Which method do you prefer? After reading this post, we sincerely hope that you can enjoy the game to its full potential!