- Compatible with:
- Windows
- Available in:
- Desktop Security version 5
Error message
The installation failed. Please restart your system and try running the installer again. For help troubleshooting please review the information at Installation troubleshooting for Malwarebytes on Windows devices.
What caused the error message
After you downloaded the app, the installer ran into an issue and was unable to begin the installation on your Windows device. Issues that could block the installer from running include lack of internet connection, blocks by third-party antivirus software, incorrect firewall rules, or S mode on Windows 10 or 11.
How to resolve the error
To successfully install the app, first review our installation troubleshooting guide to ensure there are no issues. Then try running the installer again. If you continue to receive this error message, contact Support.