11 Open Ports: Windows

Imagine your Windows 11 PC as a secure apartment building. To let friends (apps) or deliveries (data) in, you need to know which doors—called —are open and how to manage them. Part 1: The Detective Work (How to See What’s Open) You decide to check which "doors" are currently unlocked.

Enter your specific port number (e.g., 80 for web traffic or 443 for secure sites). windows 11 open ports

Press Windows Key + X and select or Command Prompt (Admin) . Imagine your Windows 11 PC as a secure apartment building

Whether you are setting up a Minecraft server, hosting a website, or configuring a remote desktop connection, knowing how to manage is a vital skill. While Windows 11 blocks most incoming traffic by default to keep you safe, certain applications require specific "doors" (ports) to be left open to function correctly. Enter your specific port number (e

net stop <servicename> (requires admin)

If you found an open port in Part 1 that you don't recognize or no longer need, you should close it to reduce your attack surface.

Use an external port scanner (e.g., Test-NetConnection -Port X from another machine, or online tools like nmap from WSL/Linux).