Windows 10 can show you what applications your network is currently using and how much data are you transferring. You can even see a list of applications that have used your network in the last 30 days.
This shows which applications are using the internet, but the methods below not only show this use. So they show all the use of the network. Whether an application is communicating with a remote server on the internet or with another computer on your local network, it will appear to use your network connection anyway.
Use the Windows 10 Task Manager to view current usage
To accurately verify which applications are using your network at this time and how much data they are loading and downloading. You have to search your Task Manager.
To open Task Manager, right-click on the taskbar and select "Task Manager." Or press CTRL + SHIFT + ESC. There are also many other ways to open it.
In the process list, click on the "Network" heading to sort the list of running processes by network use. Look at the list and you will see which applications are using your network along with how much bandwidth they are using.
If you don't see the Network heading, click on "More details" first.
Technically, this is not a complete list: if a process does not use many network resources, Windows 10 is rounded to 0 Mbps (Megabits per second). It is just a quick way to see which processes are using a remarkable amount of bandwidth.
Start the Resource Monitor to see more details
For more detailed information, go directly to the Resource Monitor application. You can start it by searching for "Resource Monitor" in the Start menu. Or by clicking on the "Performance" tab in the Task Manager and clicking on "Open Resource Monitor" at the bottom of the window.
Click on the "Network" tab and you will see a list of processes for uploading or downloading data through the network. You will also see how much data they are transferring in B / sec (Bytes per second).
This also shows processes that use a small amount of network bandwidth, which would otherwise appear as using 0 Mbps in Task Manager.
With both the Task Manager and Resource Monitor lists, you can right-click an application and select "Search online" to find more information about the exact process.
See the use of network data in the last 30 days
Windows 10 keeps track of what applications your network is using and how much data they are transferring. You can see which applications have used your network in the last 30 days and how much data they have transferred.
To find this information, go to Settings. Then to Network and Internet and finally to Data usage. Click on "View usage by application" at the top of the window. You can also press Windows + I to open the Settings window quickly.
From here, you can scroll through a list of applications that have used your network in the last 30 days.
If you are on a Wi-Fi network, you can see applications that have used your current Wi-Fi network or a list of applications that have used the network on all Wi-Fi networks to which you have connected. Select what you want to see in the "Show use of" box.
The top of the list will contain the obvious culprits, probably the applications you use most. Scroll down, and you'll see applications that rarely connect to the internet and don't use much information when they do.