Why Port 443 is being used by System Process with PID 4

Question

Why Port 443 is being used by System Process with PID 4, (ntoskrnl.exe) In Windows Server 2012 R2. I need to configure this port with Apache. But unable to do this, because its already in used.

Answer 1

Try this:

• Run net stop http - this will stop the http service (and dependant 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 your server after this, if the server starts it means one of the above services is using port 443