Method 1: Search for Task Manager
Just hit the Start button or Cortana Search, and type or speak Task Manager or TaskMgr, then select Task Manager from the Best match or App section.
Method 2: Ctrl + Shirt + Esc Keyboard Shortcut
Press Ctrl + Shift + Esc keys simultaneously to launch Task Manager instantly.
Method 3: Taskbar Right Click Menu
Right click on a blank space on the Taskbar, and select Task Manager from the menu.