With Microsoft Defender Antivirus now included in the Windows Security app, you can review, compare, and perform common tasks.
The Windows Security app is a comprehensive security solution integrated into Windows, designed to protect your device and data from various threats. It includes features such as Microsoft Defender Antivirus, Windows Firewall, and Smart App Control, which work together to provide real-time protection against viruses, malware, and other security threats. The app is built into Windows, ensuring ...
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 ...
Learn how to manage, configure, and use Microsoft Defender Antivirus, built-in anti-malware and antivirus protection.
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.
Note: The antivirus providers listed on this page might be unavailable for your version of Windows or in your country or region.