Task Manager running but hidden from view
If you are using Windows Task Manager to display the information about programs and processes that are running on your computer. You can start your Windows Task Manager with pressing Ctrl+Alt+Delete keys or with pressing Ctrl+Shift+Esc keys.
To keep Task Manager hidden when it is minimized.
First open it by pressing Ctrl+Alt+Delete keys then go to Options menu and click on Hide When Minimized.
You can easily restore it, if you click on the icon of Task Manager that will appear in taskbar near the time display.