Using anti-malware on your device Microsoft Defender's real-time anti-malware protection runs whenever your device is on, keeping an eye out for malicious activity. Microsoft Defender will also run quick scans of your device on a daily basis, in case anything manages to elude the real-time protection.
Use an anti-malware app - Installing an anti-malware app and keeping it up to date can help defend your PC against viruses and other malware (malicious software). Microsoft Defender is free anti-malware software included with Windows if you have a Microsoft 365 Personal, Family, or Premium subscription. It's kept updated automatically through Windows Update. There are also anti-malware ...
In Microsoft Defender, anti-phishing policies are available on the Email & Collaboration > Policies & rules > Threat policies > Anti-phishing page. While a default anti-phishing policy automatically applies to all recipients, you can also create custom policies for specific users, groups, or domains.
To learn more about anti-malware see Getting started with anti-malware in Microsoft Defender. Tip: Stay up-to-date and install the latest updates on all your devices and apps (especially browsers) to help prevent malware.
Learn how to manage, configure, and use Microsoft Defender Antivirus, built-in anti-malware and antivirus protection.
Admins can learn about the anti-spam settings and filters that help prevent spam in Microsoft 365.
Admins can learn about anti-malware email protection and anti-malware policies that protect against viruses, spyware, and ransomware in Microsoft 365.
Note: The antivirus providers listed on this page might be unavailable for your version of Windows or in your country or region.
To learn more about security intelligence updates, see Security intelligence updates for Microsoft Defender Antivirus and other Microsoft anti-malware. If you're looking for a list of Microsoft Defender processes, see the spreadsheet provided at Enable access to Microsoft Defender for Endpoint service URLs in the proxy server.