Windows 11 Open Ports Jun 2026

If netstat shows Port 445 open (SMB) but you don't need file sharing:

If you see a port listening that you don’t recognize, note the number on the far right. Open Task Manager , go to the Details tab, and look up that PID to see which application is responsible. windows 11 open ports

: Excellent for identifying the PID , which you can then look up in Task Manager to see exactly which program is responsible. 3. Using Resource Monitor (Visual Approach) If netstat shows Port 445 open (SMB) but