Determine which service using port 80 in Windows

1) How to determine what software is using port 80 in WINDOWS

netstat -aon | findstr 0.0:80

It will list all services which is using port 80 with PID (Process ID), The last one PID

TCP    0.0.0.0:445             0.0.0.0:0              LISTENING       4
TCP    0.0.0.0:49152          0.0.0.0:0              LISTENING       524

TCP    0.0.0.0:49153          0.0.0.0:0              LISTENING       1012


2)  Port 80 is being used by SYSTEM (PID 4), How to stop IIS Services

Open command prompt and type these command
Taskkill /PID 4 /F

If this will result like this 
ERROR: The process with PID 4 could not be terminated.

Reason: Access is denied.

Then Type this command
iisreset /stop

now run this command netstat -aon | findstr 0.0:80

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