Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.

Microsoft Defender Antivirus (formerly Windows Defender) is an antivirus software component for Microsoft Windows and mobile. It was first released as a downloadable free anti-spyware program …

May 5, 2025 · This article provides a comprehensive, step-by-step exploration of how to turn on Microsoft Defender in Windows 11, cross-examines its strengths and limitations, and contextualizes …

Oct 20, 2025 · Learn how to manage, configure, and use Microsoft Defender Antivirus, built-in antimalware and antivirus protection.

May 12, 2025 · Microsoft causes confusion with its names. This is also the case with Defender device protection. The guide breaks down the differences between Windows Defender, the Defender app …

6 days ago · Indeed, Microsoft has announced it will continue to update Microsoft Defender Antivirus on Windows 10 through October 2028. Below the suggested updates, the app suggests that you enroll …

Apr 22, 2025 · Turning on Windows Defender in Windows 11 is a simple process that helps protect your computer from viruses, spyware, and other malicious software. You can easily do this by accessing …

2 days ago · On personal versions of the OS, such as Windows 11 Home, installing a third-party antivirus solution as your PC's primary defense will automatically disable Microsoft Defender Antivirus.

If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Protect your privacy, identity, and devices with Windows Security. Explore Windows 11 security features like Microsoft Defender Antivirus that help keep you and your PC safe.