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  1. Firewall and Network Protection in the Windows Security App

    Learn how to turn the Windows Firewall on or off using the Windows Security app.

  2. What is a Firewall? - Microsoft Support

    What is a Firewall? Data flows into and out of devices through what we call ports. A firewall is what controls what is - and more importantly isn't - allowed to pass through those ports. You can think of it …

  3. Microsoft security help and learning

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

  4. Keep your computer secure at home - Microsoft Support

    Use a firewall Windows has a firewall already built in and automatically turned on. Stay away from pirated material Avoid streaming or downloading movies, music, books, or applications that do not …

  5. Risks of Allowing Apps Through Windows Firewall

    Learn about the risks of allowing apps through Windows Firewall, and how to add or remove apps from the list of allowed apps.

  6. Protect my PC from viruses - Microsoft Support

    Caution: When you remove your currently installed Internet security programs, your PC is in an unprotected state. If you haven't installed another antimalware program make sure that Microsoft …

  7. June 26, 2025—KB5060829 (OS Build 26100.4484) Preview

    Jun 15, 2024 · Error events are logged for Windows Firewall How to get this update Before you install this update Microsoft combines the latest servicing stack update (SSU) for your operating system …

  8. 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.

  9. Windows Security App Settings - Microsoft Support

    Firewall and network protection - You can specify if you want to receive notifications when Windows Firewall blocks a new app. You can also configure these notifications differently depending on if the …

  10. Windows Security App Overview - Microsoft Support

    Firewall & network protection: View and manage the status of Windows Firewall. You can turn the firewall on or off, and access advanced settings for different network types