Windows 11 Open Ports [portable] Jun 2026

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

Sometimes you need to manually open a port (e.g., for Minecraft, a torrent client, or a custom app). Here is the safe way to do it.

| Sort-Object Port

This lists all active connections and the ports they are using. To find a specific port (e.g., 8080), use: netstat -ano | find "8080" Step-by-Step: How to Open a Port in Windows 11 windows 11 open ports

Example: To close port 445 (SMB), stop the “Server” service. However, this will disable file sharing.

This article explores:

Tools like (Microsoft Sysinternals) or CurrPorts offer a graphical interface to see open ports, close connections, and kill processes instantly. You cannot secure what you cannot see

To check if a specific port (e.g., 80) is open, run: Test-NetConnection -ComputerName localhost -Port 80 To scan a range of ports, you can use a script. Part 2: How to Open a Port in Windows 11 Firewall

Press the , type cmd , and select Run as administrator . Type the following command and press Enter : netstat -ano Use code with caution. Analyze the columns: Proto: Shows the protocol used (TCP or UDP).

Even if a process listens on port 9000, the firewall may block external access. Check effective rules: Here is the safe way to do it

The netstat command provides a real-time list of all active network connections and listening ports.

This means a is already occupied.

Windows Defender Firewall is designed to block incoming traffic by default to enhance security. You must create an to allow traffic through a specific port.