Windows Firewall

Windows Firewall

Windows Defender Firewall in Windows 11, reporting firewall is turned on and working normally.
Other names	Microsoft Defender Firewall Windows Defender Firewall Internet Connection Firewall
Developer(s)	Microsoft
Operating system	Windows XP SP2 and later Windows Server 2003 SP1 and later
Service name	MpsSvc
Type	Personal firewall
Website	learn.microsoft.com/en-us/windows/security/operating-system-security/network-security/windows-firewall/

Windows Firewall (officially called Microsoft Defender Firewall in Windows 10 version 2004 and later) is a firewall component of Microsoft Windows. It was first included in Windows XP SP2 and Windows Server 2003 SP1. Before the release of Windows XP Service Pack 2, it was known as the "Internet Connection Firewall."