Windows R2 system default 80 port is system-occupied processing

--windows R2 system default 80 port is system-occupied processing

--Use the netstat command to view the specified port
Netstat-ano | Findstr:80
The----is as follows: The local 80 port is occupied by process 4
TCP 0.0.0.0:80 0.0.0.0:0 LISTENING 4
TCP 192.168.1.207:60652 221.233.41.28:80 close_wait 17160
TCP [::]:80 [::]:0 LISTENING 4

----The Task Manager to view the 4 in PID
Process name PID Description
System 4 Net Kernel&system

----Open Registry Regedit
The DWORD value of ' Start ' on the right of ' hkey_local_machine\system\currentcontrolset\services\http ' will change ' 3 ' to ' 4 '.
----Normal after restarting the server

Windows R2 system default 80 port is system-occupied processing