Cause: Missing or corrupt EFI_SIMPLE_NETWORK_PROTOCOL interface.

Solution:

If the error is specific to a particular application, try uninstalling and reinstalling it:

Conclusion

The "Internal Error 0x0B: Interface Config Missing" error can be frustrating, but it's often resolvable with some basic troubleshooting steps. By updating drivers, running a system file checker scan, resetting network settings, or uninstalling and reinstalling the affected application, you should be able to overcome this error. If none of these solutions work, feel free to leave a comment below, and we'll do our best to help you further.

Additional Tips

By following these tips and solutions, you should be able to resolve the "Internal Error 0x0B: Interface Config Missing" issue and get back to using your device without interruptions.

Internal Error 0x0B: Interface Config Missing is a common technical error encountered primarily when launching PC games through Steam. It typically signals a failure in how the game interacts with the Steam API or a mismatch in licensing. Primary Causes

Ownership & Authentication: The most frequent cause is the system's inability to verify that the logged-in account owns the game.

Corrupted Steam API Files: Missing or corrupted steam_api.dll or steam_api64.dll files can trigger this communication breakdown.

Crack/Emulator Conflicts: This error often appears when using third-party "cracks" or emulators (like CODEX) that fail to properly spoof the game's interface configuration. Recommended Solutions

Verify Account Ownership: Ensure you are logged into the Steam account that actually purchased the game. Verify Integrity of Game Files: Right-click the game in your Steam Library.

Select Properties > Installed Files > Verify integrity of game files. This will automatically replace any missing or corrupted configuration files.

Check Antivirus Quarantine: Some security software may mistakenly flag game interface files (like .dll files) as threats. Check your antivirus history and restore any files related to the game folder.

Reinstall Steam Client: If the error persists across multiple games, the Steam client's own interface files may be corrupted. A fresh installation of Steam can often resolve global API errors.

Commonly affected games reported by users include Kingdom Come: Deliverance, Fallout 4, and Sekiro: Shadows Die Twice.

Which specific game are you trying to launch when this error pops up? Fix Internal Error 0x0B: Interface Config Missing

This error rarely happens on a stable, running system. It usually rears its head during: