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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. Windows Firewall settings are greyed out - Microsoft Support

    You can now make changes to your Windows Firewall settings. Note: If the Change settings button is still greyed out, your administrator may have disabled the option for you to change …

  3. Security warning: the Windows Firewall is turned off

    In Action Center, click Turn on now for Network firewall in the Security section. If you are prompted for an administrator password or confirmation, type the password, or click Continue.

  4. Can't turn on the Windows Firewall in the Security Center

    On a computer that is running Windows Vista, the Windows Security Center warns you that the Windows Firewall is turned off. When you click Turn on now in the Windows Security Center to …

  5. “0x8007042c” error message when you try to start Windows Firewall

    Click Start, and then type Windows Firewall in the Search programs and files box (Windows 7) or in the Start search box (Windows Vista). In the navigation pane (left pane) of Control Panel, …

  6. Stay Protected With the Windows Security App - Microsoft Support

    The Windows Security app is a comprehensive security solution integrated into Windows, designed to protect your device and data from various threats.

  7. Virus and Threat Protection in the Windows Security App

    Use Virus & threat protection settings when you want to customize your level of protection, send sample files to Microsoft, exclude trusted files and folders from repeated scanning, or …

  8. Preventing SMB traffic from lateral connections and entering or …

    For Windows clients and servers that do not host SMB shares, you can block all inbound SMB traffic by using the Windows Defender Firewall to prevent remote connections from malicious …

  9. ไฟร์วอลล์และการปกป้องเครือข่ายในแอป ความปลอดภัยของ Windows

    เรียนรู้วิธีเปิดหรือปิดไฟร์วอลล์ Windows โดยใช้แอป ความปลอดภัยของ Windows

  10. Protect my PC from viruses - Microsoft Support

    Make sure that Tamper Protection is turned on - In Windows 10 and 11 we have a feature called Tamper Protection that prevents unauthorized apps from changing your security settings.