Port 80 is occupied by NT kernel & amp; System pid 4

 

Some time ago, Apache was stopped. As a result, it was found that it could not be opened and port 80 was occupied, so win + r ran cmd

Enter netstat-ano

You can see that port 80 is occupied by PID4, so open the Task Manager-process-view, select the column, select the PID

We can see that pid 4 is occupied by NT kernel & System.

 

Find a solution on the Internet for a long time

Http://www.cameroncooke.com/2009/01/25/windows-7-uses-port-80-and-makes-it-impossible-to-install-apache-solution/comment-page-1/#comments

Original article:

 

 

 

 

Translation:

This process is Http. sys. It is the driving component of http API and the Http stack server. If the port is occupied by Http. sys, some applications that are using http. sys are running. This is why Apache is blocked because Http. sys occupies port 80. We provide an application mechanism to help control port sharing, but I need to investigate what special applications cause this difficulty. If you can provide the output result of the "netsh http show servicestate" command, I can find out which application is using Http. sys. Before you disable Http. sys, follow these steps to run the command:

1. SC config http stat = demand

2. reboot

3. run the command (netsh http show servicestat) as administrator

Before using this command, you can disable http. sys as follows:

1. net stop http

2. SC config http start = disabled

 

So run net stop http

 

Confirm by y

 

Run SC config http start = disabled

 

Now, start Apache and you can start it.

Check out netstat-ano.

It is found that pid 4 occupies port 445