Solution to port 80 being occupied by system

1 Run 'netstat -ano' and find that port 80 is occupied by the process with pid=4

2 Open the task manager and find that the process with pid=4 is actually the system process, and its corresponding process description is NT kernel & system.

3 How to clear it? You need to use the registry, start-》regedit, open

4 Find the HKEY_LOCAL_MACHINE directory

5 Find System

6 Find CurrentControlSet-Services

7 Find again http-start

8 Open, change 3 to 4, confirm

9 Restart the computer, and the NT Kernel & System will be released from occupying port 80. If you want to use vs to run normally, otherwise Come over here and change 4 to 3.

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