

You shouldn't turn off Microsoft Defender Firewall unless you have another third party firewall installed and turned on. Microsoft Defender Firewall is turned on by default in Windows 10. You must be signed in as an administrator to turn on or off Microsoft Defender Firewall. This tutorial will show you different ways on how to turn on or off Microsoft Defender Firewall for network locations (profiles) in Windows 10. See also: Automatically diagnose and fix problems with Windows Firewall | Windows Support Microsoft Defender Firewall is designed to help prevent hackers or malicious software from gaining access to your PC through the Internet or a network. Starting with Windows 10 build 16193, Windows Firewall has been renamed to Windows Defender Firewall, and now renamed to Microsoft Defender Firewall in Windows 10 version 2004 and higher. How to Turn On or Off Microsoft Defender Firewall in Windows 10
