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If you’re encountering Dev Error 0x86484ED1 in Call of Duty: Modern Warfare or Warzone, you’re not alone. This frustrating error can crash your game unexpectedly, often after a recent update or during gameplay. Fortunately, several proven fixes can help resolve the issue. Below, we’ll explore the best troubleshooting methods to get you back into the action.

What Causes Dev Error 0x86484ED1?

While the exact cause isn’t always clear, this error is typically related to:

  • Corrupted game files

  • Outdated or faulty GPU drivers

  • Overlays from third-party apps (Discord, GeForce Experience, Xbox Game Bar)

  • Shader cache issues

  • Console cache problems (for Xbox players)

  • Network-related conflicts

Now, let’s dive into the solutions.

1. Run Scan and Repair (Battle.net or Steam)

Corrupted game files are a common trigger for Dev Error 0x86484ED1. Both Battle.net and Steam offer built-in repair tools.

On Battle.net:

  1. Open the Battle.net launcher.

  2. Click on Call of Duty: Modern Warfare.

  3. Click the gear icon (Options) and select Scan and Repair.

  4. Wait for the process to complete, then restart the game.

On Steam:

  1. Open Steam and go to your Library.

  2. Right-click Call of Duty: Modern Warfare and select Properties.

  3. Go to the Local Files tab and click Verify Integrity of Game Files.

  4. Steam will check for missing or corrupted files and redownload them if needed.

2. Update Your GPU Drivers

Outdated graphics drivers often cause crashes in Modern Warfare. Ensure yours are up to date.

For NVIDIA Users:

  1. Open GeForce Experience.

  2. Click the Drivers tab and select Check for Updates.

  3. Download and install the latest driver if available.

For AMD Users:

  1. Open AMD Adrenalin Software.

  2. Navigate to the Updates section.

  3. Install the latest recommended driver.

For Intel Arc Users:

  1. Visit Intel’s driver download page.

  2. Download and install the latest GPU driver.

After updating, restart your PC before launching the game again.

3. Disable Overlays (Discord, GeForce Experience, Xbox Game Bar)

Third-party overlays can interfere with Call of Duty and trigger errors.

Disable Discord Overlay:

  1. Open Discord and go to Settings (⚙).

  2. Under App Settings, select Overlay.

  3. Toggle off Enable in-game overlay.

Disable NVIDIA GeForce Experience Overlay:

  1. Open GeForce Experience.

  2. Click the Settings (gear icon).

  3. Toggle off In-Game Overlay.

Disable Xbox Game Bar:

  1. Press Win + I to open Settings.

  2. Go to Gaming > Xbox Game Bar.

  3. Toggle it Off.

After disabling overlays, restart your game to see if the error persists.

4. Clear Shader Cache

Shader cache issues can cause crashes in Modern Warfare. Resetting them may help.

On PC:

  1. Open File Explorer and navigate to:

    • Battle.net version:

      Copy

      Download

      C:\Program Files (x86)\Call of Duty\_retail_\shadercache

    • Steam version:

      Copy

      Download

      C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Modern Warfare\shadercache

  2. Delete the contents of the shadercache folder.

  3. Restart the game (it will rebuild shaders).

On Xbox:

  1. Power off your console.

  2. Unplug the power cable for 30 seconds.

  3. Plug it back in and restart.

5. Reset In-Game Graphics Settings

Sometimes, incorrect graphics settings can trigger crashes.

  1. Launch Modern Warfare.

  2. Go to Settings > Graphics.

  3. Click Restore Defaults and apply changes.

  4. Restart the game.

6. Reinstall the Game (Last Resort)

If nothing works, a fresh install may be necessary.

  1. Uninstall Call of Duty: Modern Warfare via Battle.net/Steam.

  2. Delete remaining files manually (check installation folders).

  3. Reinstall the game.

This ensures no corrupted files remain.

7. Additional Fixes

  • Disable Windows Firewall/Antivirus Temporarily (may block game files).

  • Run the Game as Administrator (right-click shortcut > Run as admin).

  • Check for Windows Updates (some errors are fixed via OS patches).

Final Thoughts

Dev Error 0x86484ED1 can be frustrating, but these solutions should help. Start with scanning and repairing, then update drivers, disable overlays, and clear shader cache. If the issue persists, a full reinstall may be needed.

Did we miss a fix that worked for you? Let us know in the comments!

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Happy gaming! 🎮

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