[Solved] MW3 Error Code 0x00001338(12488)n (COD Modern Warfare 3)

The highly anticipated Call of Duty: Modern Warfare 3 (MW3) has arrived, but along with it comes the pesky MW3 error code: 0x00001338(12488)n. Don’t let this error stand in the way of your gaming experience. In this guide, we’ll provide you with a comprehensive troubleshooting approach to help you tackle this issue head-on and get back to the battlefield.

What is MW3 Error Code: 0x00001338(12488)n

The MW3 error code: 0x00001338(12488)n can be a formidable adversary for those diving into the early access of this game. It can manifest in various forms, from crashes to performance hiccups, and it’s essential to understand its root cause before implementing fixes.

How To Fix MW3 Error Code: 0x00001338(12488)n

Registry Edit – Adjusting CPU Priority

This method involves a registry edit to optimize CPU priority for the MW3 game executable. Here’s how to do it:

• Open a text editor on your PC and copy the following into it:
  • [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options/mp23-cod.exe/PerfOptions] "CpuPriorityClass"="00000003"
• Save the file on your desktop as COD.reg (be sure to select “All Files” as the file type).
• Double-click the COD.reg file on your desktop, and when a message appears, click “Yes.”

Update Graphics Drivers

Ensure your graphics drivers are up to date. Outdated drivers can often be a cause of game errors, including the MW3 error code. Visit the official website of your graphics card manufacturer (e.g., NVIDIA or AMD) to download the latest drivers compatible with your hardware.

Check for Corrupted Game Files

1. Open your Steam Library.
2. Right-click on Call of Duty: Modern Warfare 3.
3. Select “Properties” and go to the “Local Files” tab.
4. Click “Verify Integrity of Game Files.”

Adjust Game Priority in Task Manager

Try setting the game’s priority in the Task Manager to “High” or “Above Normal.” This adjustment can often resolve performance-related issues.

Final Words

Don’t let the MW3 error code: 0x00001338(12488)n disrupt your gaming experience. With these detailed troubleshooting steps, you can overcome this challenge and return to the intense battles of MW3. Remember, gaming is all about conquering challenges, and with the right approach, you’ll be back in action, taking on your opponents, and enjoying every moment in the world of MW3. Good luck and happy gaming!