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  1. First, you need to open the Windows Firewall app. There are several ways to do it but the easiest one is via the Start menu. So, click the Windows logo on the taskbar, search for Windows Defender Firewall, and click on the top result to open Windows Firewall. Identify Active Firewall Profile.

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    It's important to have Microsoft Defender Firewall on, even if you already have another firewall on. It helps protect you from unauthorized access.

    , switch the setting to

    If your device is connected to a network, network policy settings might prevent you from completing these steps. For more info, contact your administrator.

    To turn it off, switch the setting to

    Turning off Microsoft Defender Firewall could make your device (and network, if you have one) more vulnerable to unauthorized access. If there's an app you need to use that's being blocked, you can allow it through the firewall, instead of turning the firewall off.

    If you get errors, or if the setting won't turn on, you can

    Explore subscription benefits, browse training courses, learn how to secure your device, and more.

    Learn how to enable or disable Microsoft Defender Firewall on Windows 11 or Windows 10. Find out why it's important to have it on and how to troubleshoot any issues.

  2. Learn how to view, manage, and troubleshoot your firewall settings for different network types in Windows 10 and 11. Find out how to allow apps, block connections, and access advanced options for Microsoft Defender Firewall.

  3. 9. Juni 2023 · 1. Open your Start menu. Windows' default firewall program is located in the "System and Security" folder of the Control Panel app, but you can easily access your firewall's settings by using the Start menu's search bar. [1] You can also tap the ⊞ Win key to do this. 2. Type "firewall" into the search bar.

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  4. Mit firewall & Netzwerkschutz in Windows-Sicherheit können Sie die status von Microsoft Defender Firewall anzeigen und sehen, mit welchen Netzwerken Ihr Gerät verbunden ist. Sie können Microsoft Defender Firewall aktivieren oder deaktivieren und auf erweiterte Microsoft Defender Firewall-Optionen für die folgenden Netzwerktypen zugreifen:

  5. 11. Okt. 2023 · Find, manage, and configure the Windows 10 firewall to protect your computer based on how you use it. Block unwanted programs and allow desired apps.

  6. 22. Nov. 2023 · Die Windows-Firewall ist ein Sicherheitsfeature, mit dem Sie Ihr Gerät schützen können, indem Netzwerkdatenverkehr gefiltert wird, der ihr Gerät ein- und verlässt. Dieser Datenverkehr kann nach verschiedenen Kriterien gefiltert werden, einschließlich Quell- und Ziel-IP-Adresse, IP-Protokoll oder Quell- und Zielportnummer.