Ports in Windows Firewall allow information to flow between your PC and the internet. Different ports are used for different purposes, such as Port 80 and 8080, which are used for web browsing over HTTP. For security purposes, firewalls close ports to prevent unwanted access. To open a port in Windows Firewall, open the ‘Windows Defender Firewall with Advanced Security’ window, and click Inbound Rules on the left. Click New Rule, then select Port. Click Next, and choose the internet protocol you require – TCP (Transmission Control Protocol) or UDP (User Datagram
Protocol). For most people, TCP will be the right choice. Type the port number you want to open (see screenshot), click Next, then choose to allow the connection, allow the connection if it’s secure, or block the connection.…
