Why port 443 is used by System Process with PID 4

Question

Why port 443 is used by System Process with PID 4 (ntoskrnl.exe) in Windows Server 2012 R2. I need to configure this port using Apache. But it was not possible to do this because it was already used.

Answer 1

Try the following:

• Start net stop http- this will stop the http service (and dependent services)

   The following services are dependent on the HTTP Service service.
   Stopping the HTTP Service service will also stop these services.
  
     SSDP Discovery
     Print Spooler
     Routing and Remote Access
     HomeGroup Provider
     Function Discovery Resource Publication
     Function Discovery Provider Host
  

Try starting the server after that, if the server starts, it means that one of the above services uses port 443

Answer 2

, http.sys, Windows HTTP. -, ( - nginx , -), , , -, HTTP HTTPS-. ¹

, , ; , http.sys , , , , - , , ; - , http.sys(, , IIS).

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• , , HTTP, , - MS15-034 , DoS BSOD .

Answer 3

WinRM - Windows (WS-Management) :

net stop winrm