Windows Security: Defender Antivirus, SmartScreen, and More
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.
Microsoft Defender for Individuals | Microsoft 365
Use Microsoft Defender for individuals as your personal defense against online threats and easily manage your family’s online security.
Microsoft Defender Antivirus in Windows Overview
Oct 20, 2025 · Learn how to manage, configure, and use Microsoft Defender Antivirus, built-in antimalware and antivirus protection.
Installing Microsoft Defender - Microsoft Support
Microsoft Defender is a new security app that helps protect you and your family across all your devices; Windows, Android, Mac, and iOS.
how to install windows defender - Microsoft Q&A
Jun 17, 2025 · Learn how to troubleshoot problems with Windows Defender and Endpoint Protection. Enable and update Microsoft Defender Antivirus on Windows Server - Microsoft …
Microsoft Defender—Cybersecurity Solutions | Microsoft Security
Explore Microsoft Defender, powerful cybersecurity software and solutions for individuals and businesses, backed by advanced Microsoft threat protection.
Getting started with Microsoft Defender
Learn about getting started with the new Microsoft Defender on your personal devices including Windows, Mac, Android, and iOS.
Microsoft Defender products and services
Explore the Microsoft Defender products and services available for your business or organization.
Microsoft Defender Antivirus security intelligence and product …
Keeping Microsoft Defender Antivirus up to date is critical to assure your devices are protected against new malware and attack techniques. Update your antivirus protection, even if …
Microsoft Defender for Endpoint | Microsoft Security
Microsoft Defender for Office 365 is a collaborative security solution that helps secure your email and Microsoft Teams environments with advanced protection against phishing, business email …