Task Manager displays the programs, processes, and services that are currently running on your computer. You can use Task Manager to monitor your computer’s performance or to close a program that's not responding. For more information, see Exit a program that isn't responding.
If you're connected to a network, you can also use Task Manager to view network status and see how your network is functioning. If more than one person is connected to your computer, you can see who's connected and what they're working on, and you can send them a message.
Open Task Manager by right-clicking the taskbar, and then clicking Start Task Manager.
You can also open Task Manager by pressing Ctrl+Shift+Esc.