Task manager view;

First of all, we have a taskbar under the computer. Find the task manager and open it.

After entering the task manager, we select the third service option on the right in the menu bar at the top. In the number of processes below, we can see the total number of processes currently running.

After entering the service option, we can see the name of the running program on the left and a PID on the right. This is the port number of the corresponding running program. We can click PID to display port numbers in ascending or descending order for observation.

The software checks the port number;

First of all, make sure that you have security software on your computer, including 360, Baidu Security Guard and QQ Manager. If not, we can open Baidu and enter 360 to download and install.

After downloading and installing, we click the program icon to run the program and enter the main interface of 360 Security Guard.

After entering the main interface of Security Guard, we click more options in the function bar at the lower right to enter the update application bar.

After entering the interface of more application tools, we click My Tools above to enter the interface of My Tools List, and select the function of traffic firewall in the list.

After entering the traffic firewall interface, we click on the network connection service above, and then we can see the local port number and port number of the running program in the following list.