: Search for "Windows Defender Firewall with Advanced Security" in the Start menu and open it. Create Inbound Rule : In the left pane, click Inbound Rules , then select

Windows 11 features a sophisticated, host-based that integrates deeply with the operating system to manage network ports, providing granular control over both inbound and outbound traffic.

) for RPC-based communications, which can be seen open for system services. 4. Security & Hardening Features How to add a rule or port to a Windows 11 firewall

You cannot secure what you cannot see. Here are the definitive ways to list .