PID:4 using Port 80 In Windows Server 2012 R2

i will cut the chase, if you are suspecting something is using Port 80 and is trying to find out what is it, here are some suggestion. Try stopping the following services

  • IIS
  • World Wide Web Publishing service
  • IIS Admin Service
  • SQL Server Reporting services
  • Web Deployment Agent Service

And if the  NT Kernel was still listening on port 80, you just hit the jackpot with me. Its BranchCode. Try removing it under "Remove Roles" in "Server Management" as show below,

Once you remove that, restart your server and port 80 should be all yours. Verify using the following command,


netstat -nao | find ":80"

and it should show you this.

Good LUCK!

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