- Compatible with:
- Windows
- Available in:
- Malwarebytes Device Protection & Antivirus
Review the items below to ensure a successful installation of the Malwarebytes app on Windows devices. For device requirements, see System Requirements for Malwarebytes for Windows and Mac.
Before installing Malwarebytes on your Windows device:
- Verify the device has an active internet connection.
- Temporarily disable the following:
- Third-party antivirus software
- VPN or proxy settings
- For Windows 8.1 devices and below, you must upgrade to a later Windows version before downloading the app.
If installations continue to fail, verify that the rule ark.mwbsys.com on port 443 has been added to the Firewall.
To ensure that Malwarebytes installs correctly:
- Run the installer locally on your device and not from a network drive.
- Reboot the system immediately when the installer requests a restart. The installer should launch automatically. Do not start the app manually.
- If you are upgrading, install to the same location as the previous version. Most users install in the default location, C:\Program Files\Malwarebytes.
- To install in a different location, you must first uninstall the app from the device.
- On Windows 10 and Windows 11, if you see a message window with The app you're trying to install isn't a Microsoft-verified app, update your app installation settings.
- Click Change my app recommendation settings on the message window to go to the Apps & Features menu. Under Choose where to get apps, select Anywhere.