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Malwarebytes Help Center
Device Protection & Antivirus
Fix an Issue
Error Messages - Windows and Mac
Error Messages - Windows and Mac
Installation token not found
There's an issue with your license key
Unable to contact update server. Please check your internet connection.
Unable to contact license server. Check your network settings.
Unable to contact update server. Check your proxy settings.
Unable to contact license server. Check your network connection.
This version of Malwarebytes Anti-Ransomware is not compatible
An unsupported legacy version of the product has been detected
A corporate Malwarebytes product is already running on this computer
This version of Windows is not supported
Malwarebytes for Windows does not support this system's CPU or hardware architecture.
The installation failed. Please restart your system and try running the installer again.
The installation failed to start. Please try running the installer again.
Malwarebytes must restart your computer to finish the installation
Invalid path
Update Windows to stay protected
To complete the installation, your system may need to be restarted.
You do not have sufficient permissions to install Malwarebytes.
Your system does not have enough free disk space to install the app.
The installer cannot be run from a network drive
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