Windows 11 Open Ports Patched May 2026

Windows 11 Open Ports: An In-Depth Technical Guide

Introduction

In the networking stack of Windows 11, a "port" is a logical endpoint for communication. Open ports are essential for any service that listens for incoming connections — but they also represent the primary attack surface. Understanding, enumerating, and managing open ports on Windows 11 is a core skill for system administrators, security analysts, and power users.

• View with PowerShell: Get-NetFirewallRule -Enabled True | Get-NetFirewallPortFilter or Get-NetFirewallRule | Where-Object Enabled -eq 'True'.
• Windows Defender Firewall with Advanced Security (wf.msc) shows allowed/blocked inbound and outbound rules.

Windows 11 comes with several default open ports, including: windows 11 open ports

How to read the results:

Interface Restriction: You can restrict port rules to specific network interfaces (e.g., Wi-Fi vs. Ethernet). 2. Deep Visibility into Open Ports Windows 11 Open Ports: An In-Depth Technical Guide

How to Check Open Ports in Windows 11