Windows 11 Open Ports -

Get-NetTCPConnection -State Listen | Select-Object LocalAddress, LocalPort, State, OwningProcess | Format-Table Use code with caution. How to Close and Secure Open Ports in Windows 11

Type control firewall.cpl and press to open the classic Firewall settings.

Be careful with this command—only terminate processes if you're absolutely certain they aren't critical to system operation. windows 11 open ports

Navigate to the Performance tab and click Open Resource Monitor at the bottom of the window.

You must open ports for specific tasks, such as hosting a Minecraft server, using Remote Desktop, or running a Plex media library. How to Check Which Ports are Open on Windows 11 Navigate to the Performance tab and click Open

Windows 11, like all modern operating systems, communicates over networks using thousands of virtual “doors” known as ports. These ports are essential for sending and receiving data—whether you’re browsing the web, printing a document, or hosting a game server. However, every open port is a potential entry point for malicious actors. This article explains what open ports are, how to check them in Windows 11, and how to secure your system.

netstat -ano

This command chains together the port information with the process details, showing you the application name behind the open port.

| Sort-Object Port

If a specific app (like a game server or remote desktop tool) isn't working, you may need to manually open a port through the Windows Defender Firewall How to Open Ports in Windows 10 and Windows 11 Firewall