In those situations, it is better to know which ports are in use and which application is using that specific port. Active 2 days ago. Use of the netstat command with -aon options together with the findstr command to find out which process is using a particular port, and vice versa. Sort the list of process by the “PID” column and find the PID associated with the port you’re investigating. Open a command prompt window and type: netstat -a -n -o. In the Windows example, we find out that process with PID 3696 is the one binding the relevant port (8080). Viewed 776k times 406. 253. First, enter this command in cmd ..... netstat -ano | findstr :8080 this or similar you will see TCP 0.0.0.0:8080 0.0.0.0:0 LISTENING 4492 now you know the id of application which using port 8080 then find that app using id type in this code with your id, (in my case it 4492) tasklist | findstr 4492 and here you go. [closed] Ask Question Asked 3 years, 4 months ago. Solution To find the process which is using the Serial (COM) Port, follow the steps below. You might be … With Windows it is as easy as using netstat and tasklist commands. How do I kill the process currently using a port on localhost in Windows? Windows Issue Details How do I figure out what process is using the COM port? If you’re using Windows 8 or 10, switch to the “Details” tab in Task Manager. It is also possible to use "netstat -ab" in Windows where it will list the process responsible to bind the port. Download TCPView TCPView is a Windows program that will show you detailed listings of all TCP and UDP endpoints on your system, including the local and … Thanks for reading. The option "a" list all connections and the option "b" display the executable involved. Download the Process Explorer tool from Microsoft. Closed. In older versions of Windows, you’ll see this information on the “Processes” tab. So you are looking which application is using port 8080? Often there are times that you have a port in use and you find that a process is using the port you need to free up or there is a port and you just need to find out who owns it. Use Sysinternals TCPView By Mark Russinovich. Open Device Manager and expand Ports (COM & LPT). Without further ado, let me show you how to find which ports are in use in Windows 10. That way, you can either change the port or terminate the problem causing application so that the other one works as it should.