Finding What Ports in Use in Windows 10: Check a Port is Used – Windows Tips

By | July 8, 2022

When we are using windows 10, we may want to know what ports are used. In this tutorial, we will discuss this topic.

Step 1: open command prompt in windows 10

It means we use cmd command to open it.

Step: use netstat -ano command

netstat -ano

Run this code, we may see:

netstat -ano command to find ports in use

We can find what ports are used from the result.

However, there are many rows, how to find the port that we want to check.

Step 3: use netstat -ano | findstr “port_number” command

For example, we want to know whether port 445 is used or not, we can do as follows:

netstat -ano | findstr "445"

Run this code, we may see:

TCP                LISTENING       4
TCP    [::]:445               [::]:0                 LISTENING       4

It means port 445 is used by some applications.

If you can not find any outputs, it means this port is not used by any application.