Port 80 is occupied by System service?

C:Windowssystem32 > netstat-aon | findstr 80
TCP 0.0.0.0aon 80 0.0.0.0aon 0 LISTENING 4
TCP 166.0.4.117purl 49175 59.110.244.1 80 CLOSE_WAIT 3748

C:Windowssystem32 > tasklist | findstr "4"
System Idle Process 0 Services 0 24 K
System 4 Services 0384 K
wininit.exe 576 Services 0 4416 K
services.exe 636 Services 0 7664 K

what on earth is this system application?
how to prevent it from occupying this port?

Jul.03,2021

try using the net stop HTTP command, which will try to find all the services that occupy port 80, (service), and then stop them.


maybe IIS web deploy is occupied. After you stop IIS

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