Firewall and Network Protection in the Windows Security App
You can use the Windows Security app to view and manage the status of Windows Firewall. You can turn the firewall on or off, and access advanced settings for different network types, including domain (workplace), private (trusted), and public (untrusted) networks.
Virus and Threat Protection in the Windows Security App
The virus and threat protection page of the Windows Security app is designed to help you safeguard your device against various threats such as viruses, malware, and ransomware.
Device Security in the Windows Security App - Microsoft Support
The Device security page in the Windows Security app helps protect your Windows device by managing hardware‑based and operating system security features, including Secure Boot, core isolation, and processor‑level protections.
Device performance and health in the Windows Security App
The Device performance & health page in the Windows Security app gives you a clear, comprehensive view of your device’s overall health.
App & browser control in the Windows Security App
The App & Browser Control page in the Windows Security app provides essential security settings that protect your Windows device from unsafe apps, files, websites, and downloads.
Secure Boot certificate update status in the Windows Security app ...
The in-app Secure Boot status text is visible on all supported Windows versions. However, Secure Boot-specific badge changes and app notifications are disabled by default on managed and enterprise devices to reduce notification noise.
Smart App Control Frequently Asked Questions - Microsoft Support
Our intelligent cloud-powered security service sees a huge number of apps every day and uses that knowledge to predict if an app is safe or not safe — even apps we've never seen before.
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.
Applies To: Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows
Microsoft security help and learning
Get security info and tips about threat prevention, detection, and troubleshooting. Including tech support scams, phishing, and malware.
Stay protected with the Windows Security app - Microsoft Support
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.