Starting with the Redstone 5 update, Windows Defender Antivirus is adding “Block suspicious behaviors,” which is a new feature (part of the Windows Defender Exploit Guard attack surface reduction technology) designed to detect and stop apps and files behaviors that might infect your device and data. In this guide, you’ll learn the steps to enable Windows Defender Antivirus “Block suspicious behaviors” feature to prevent certain apps and files from infecting your device running Windows 10.

How to enable ‘Block suspicious behaviors’ on Windows 10

You can add another security layer to prevent suspicious behaviors from infecting your device using these steps: Once you’ve completed the steps, the Windows Defender Antivirus will prevent certain behaviors by an app or file that might end up infecting your device and personal files. Windows Security Virus & threat protection settings Block suspicious behavior feature on Windows 10 version 1809 If you don’t see this option, it’s because you’re not running a supported version of Windows 10. Block suspicious behaviors option appears in the Windows Security settings starting with Windows 10 version 1809 and later. Update August 15, 2018: This feature has been removed from Windows 10, but it may return in the feature. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.