Windows 11 Open Ports ◉

Connection-oriented. It guarantees that all data packets arrive safely and in the correct order. Used for web browsing (HTTP/HTTPS) and file transfers (FTP).

If command-line tools make you uncomfortable, Windows 11 includes a graphical tool called Resource Monitor that shows open ports in an easy-to-read interface. Here's how to access it:

Press the , type cmd , right-click Command Prompt , and select Run as administrator . Type the following command and press Enter : netstat -ano Use code with caution. Understanding the parameters: -a displays all active connections and listening ports. windows 11 open ports

The /F flag forces termination of the process

The "Local Address" column often shows addresses like 0.0.0.0 or [::] . These mean the port is listening on all available network interfaces (both IPv4 and IPv6) on your computer. If you see 127.0.0.1 , the port is only open for connections coming from your own computer—not from other devices on your network. Connection-oriented

If your audit reveals a port opened by an unrecognized or insecure application, you should close it immediately to safeguard your system. Step 1: Terminate the Active Process

Assigned to specific applications and vendor-specific services upon request. If command-line tools make you uncomfortable, Windows 11

PowerShell offers modern, object-oriented cmdlets that provide highly detailed network telemetry.

Get-NetTCPConnection -LocalPort 443