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Stay protected with the Windows Security app - Microsoft Support
Summary 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 ...

Microsoft security help and learning
Get security info and tips about threat prevention, detection, and troubleshooting. Including tech support scams, phishing, and malware.

Getting started with Microsoft Defender
Microsoft Defender is a security app that helps people and families stay safer online with malware protection, web protection, real-time security notifications, and security tips. Microsoft Defender is included in a Microsoft 365 Family or Personal subscription and works on your phone (Android or iOS), PC, and Mac.

Microsoft Support
Microsoft Support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows 11, Surface, and more.

Microsoft Defender products and services
Explore the Microsoft Defender products and services available for your business or organization.

Keep your computer secure at home | Microsoft Support
Get tips to help protect your home computer from scams, malware, viruses, and other online threats that might try steal your personal information.

Virus and Threat Protection in the Windows Security App
Learn how to use virus and threat protection options in Windows Security to scan your device for threats and view the results.

Microsoft Defender Antivirus in Windows Overview
Learn how to manage, configure, and use Microsoft Defender Antivirus, built-in anti-malware and antivirus protection.

System Protection - Microsoft Support
System protection in Windows is a recovery feature designed to help you safeguard your system settings. It primarily involves creating and managing restore points, which are snapshots of system files, installed applications, Windows Registry, and system settings at a specific point in time.

Windows 11 security book - Virus and threat protection
Network protection Microsoft Edge includes built-in protection through Microsoft Defender SmartScreen. Windows 11 extends protection to third-party browsers and processes with its Network protection feature. This capability helps block access to phishing sites, malware, tech support scams, and malicious downloads.

Enable and configure Microsoft Defender Antivirus always-on protection
Enable and configure Microsoft Defender Antivirus real-time protection features such as behavior monitoring, heuristics, and machine learning.