How to Check Open Ports in Windows (Full Guide for 2025)

check port open windows Learn how to use Command Prompt or a freeware tool to view the ports used by your PC and the processes or services associated with them. Also, find out how to test if a Firewall is blocking a port and how to close unwanted connections..

check windows version  Whether you're troubleshooting network issues, securing a Windows server, or configuring your firewall, knowing how to check open ports in Windows is essential.

windows pc health check  There are many ways to check if a port is open in Windows 10. There's a Windows command or several third-party utilities to view all open ports.