80 ports are occupied, how to lift

80 ports were found to be occupied while IIS was adding a Web site, there are two scenarios (a) decommissioning (b) new sites using new ports, such as 8080

How to unblock 80 ports? The first thing to find out is which process takes up 80 ports, the following steps:

(1) Start-run--cmd Enter the command prompt to enter NETSTAT-ANO|FINDSTR "80" to find the PID that consumes 80 ports

(2) Under the Task Manager's process options, click on the Select Menu "View"-"select column", in the dialog box, select "PID (process Identifier)", and in the process to find a 80-port process PID, and then close the process

80 ports are occupied, how to lift