How to check port usage in Windows

Windows method to check port occupancy: 1. Use Command Prompt (Command Prompt) to check port occupancy; 2. Use Resource Monitor (Resource Monitor) to check port occupancy; 3. Use third-party port management Tool to check port occupancy status.

Windows is one of the widely used operating systems and many applications and services may occupy ports on your computer. When a port is occupied, it may prevent other programs from working properly or cause network connection problems. So, learn how to view Port occupancy on Windows is very important. This article will introduce several common methods to help you view and manage port usage.

1. Use Command Prompt to check the port occupancy

A simple and direct method is to use the command prompt to check the port occupancy. The following are the specific steps:

1. Open Command Prompt: Run Command Prompt as administrator. Click the Start menu and enter "cmd" in the search box. Find "Command Prompt" in the search results, right-click and select "Run as administrator."

2. Enter the command to view port occupancy: In the command prompt window, enter the following command and press the Enter key.

netstat -ano | findstr [port number]

Replace [port number] with the specific port number you want to view. If you want to see all port usage, you can omit [port number].

3. Check the port occupancy: After the command is executed, the system will list all occupied ports and the corresponding process ID (PID). You can determine which process is occupying the port based on the PID.

2. Use Resource Monitor to check port occupancy

Windows provides a built-in tool called "Resource Monitor" that can help you monitor and manage computer resources. Usage, including port occupancy.

The following are the steps to use Resource Monitor to check port occupancy:

1. Open Resource Monitor: Press the "Win R" key combination to open the "Run" dialog box and enter " resmon.exe" and click the "OK" button.

2. Open the Network tab: In the Resource Monitor window, click the "Network" tab on the left navigation bar.

3. View port occupancy: In the Network tab, you can see all active network connections and the corresponding port numbers and process names. You can look for specific occupancy based on individual ports.

3. Use third-party port management tools to check port occupancy

In addition to the built-in tools provided by Windows, there are also some third-party port management tools that can provide richer functions and more Intuitive interface to view port occupancy.

The following are some commonly used third-party port management tools:

- TCPView: This is an open source tool developed by Microsoft's Sysinternals. It provides a user-friendly interface to view currently active TCP and UDP connection, and the corresponding process name and PID.

- CurrPorts: This is a small but powerful port management tool that can display all open ports on the current computer and provide relevant information, such as process ID, process path, port protocol, etc.

- Portqry: This is a command line tool provided by Microsoft. It can help you quickly check the status of a specific port, such as whether the port is open, whether it is blocked by the firewall, etc.

Summary:

Whether using Command Prompt, Resource Monitor, or a third-party tool, you can help you view Windows port occupancy status. Please choose a method that suits you based on your specific needs and personal preferences to manage and resolve port occupancy issues.

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