MU Online Official

Hello, this is MU Online.

We sincerely apologize for the inconvenience caused by recent issues where Windows Defender mistakenly flagged some MU Online files, making it difficult to run the game.

This issue has now been resolved. If you are still experiencing difficulties launching the game, please update Windows Defender to the latest version to ensure normal operation.

Latest Version: 1.441.707.0

Once Windows Defender is updated to the latest version, it will no longer incorrectly detect game files, and you will be able to run MU Online without any problems.

Thank you for your understanding and continued support. We remain committed to providing a stable and enjoyable gaming environment.

Thank you.