Windows can show you which applications are using your network right now and how much data they’re transferring. You can even see a list of apps that have used your network over the last 30 days.
This shows which apps are using the internet, but the below methods don’t just show internet usage. They show all network usage. Whether an application is communicating with a remote server on the internet or another computer on your local network, it will appear as using your network connection all the same.
Use the Task Manager to See Current Usage
To check precisely which applications are using your network right now—and how much data they’re downloading and uploading—look in your Task Manager.
To open the Task Manager, right-click your taskbar and select “Task Manager” or press Ctrl+Shift+Esc. There are many other ways to open the Task Manager, too.
In the list of processes, click the “Network” heading to sort the list of running processes by network usage. Watch the list, and you’ll see which applications are using your network along with how much bandwidth they’re using.
(If you don’t see the Network heading, click “More Details” first.)
Technically, this isn’t a complete list—if a process isn’t using much network resources, Windows rounds down to 0 Mbps (Megabits per second.) It’s just a quick way to see which processes are using a noticeable amount of bandwidth.
Launch Resource Monitor to See More Details
For more detailed information, go straight to the Resource Monitor application. You can launch it by searching for “Resource Monitor” in the Start menu or by clicking the “Performance” tab in the Task Manager and clicking “Open Resource Monitor” at the bottom of the window.
Click the “Network” tab, and you’ll see a list of processes downloading or uploading data over the network. You’ll also see how much data they’re transferring in B/sec (Bytes per second.)
This also shows processes using a small amount of network bandwidth, which would otherwise appear as using 0 Mbps in the 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 what exactly the process is.
See Network Data Usage Over the Last 30 Days
Windows 10 keeps track of which applications are using your network and how much data they’re transferring. You can see which apps have used your network over the past 30 days and how much data they’ve transferred.
To find this information, head to Settings > Network & Internet > Data Usage. Click “View usage per app” at the top of the window. (You can press Windows+I to open the Settings window quickly.)
From here, you can scroll through a list of apps that have used your network in the last 30 days.
If you’re on a Wi-Fi network, you can see apps that have used your current Wi-Fi network or a list of apps that have used the network on all Wi-Fi networks to which you’ve been connected. Select what you want to see in the “Show usage from” box.
The top of the list will contain obvious culprits—likely the apps you use the most. Scroll down to the bottom, and you’ll see applications that rarely connect to the internet and don’t use much data when they do.