Windows 11 Open Ports !new! May 2026

Overview: Windows 11 — open ports, risks, and how to manage them

What "open ports" means

Warning: Only open ports for trusted applications. Opening random ports exposes you to remote exploitation. windows 11 open ports

Quick PowerShell commands cheat-sheet

Get-Process -Id <PID>

  • Add-Type -Namespace Win32 -Name Native -MemberDefinition @'
[DllImport("iphlpapi.dll", SetLastError=true)]
public static extern uint GetExtendedTcpTable(IntPtr pTcpTable, ref int dwSize, bool bOrder, int ulAf, int TableClass, int Reserved);
'@

    Filter for Listening Ports: To see only ports waiting for a connection, use: netstat -an | find "LISTEN". Using Graphical User Interface (GUI) Overview: Windows 11 — open ports, risks, and