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How to fix MuMuPlayer startup failure with the prompt "Please try to exit the antivirus software and restart the emulator"?

2025-07-15

When some users use MuMuPlayer, they may encounter a pop-up window prompting "the MuMuPlayer failed to start, please try to exit the antivirus software and restart the MuMuPlayer" when starting the MuMuPlayer. Users who encounter such situations can try the following steps:

1. Exit or uninstall antivirus software

Exit or uninstall your antivirus software.

2. Re-download and Install the MuMuPlayer

Download the latest version, override and install the MuMuPlayer

3. Restart the MuMuPlayer

Wait for the MuMuPlayer to complete the installation, and then try to restart the MuMuPlayer.

Note: Some users may not install security software, but when installing the MuMuPlayer it still pops up the code 50016. This is because the MuMuPlayer may be automatically blocked by the security program, you can refer to the following steps:

Click Win+R, type cmd, or in the input box of the start menu, type cmd, right-click on the Command Prompt - Run as administrator (as shown the following picture)

In the pop-up cmd window (i.e. Command Prompt window), type sc.exe delete AlibabaProtect, and then click Enter to execute the code, then restart your computer and try to reinstall the MuMuPlayer.

If the solution above still cannot resolve your problem, please contact us via Facebook or join our Discord server for online support.

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Or You can:
1. For users with macOS, please join MuMuPlayer's official Discord and consult the online customer service.
2. For users with Windows, please send a feedback email to support@mumuglobal.com
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