There are many ways to open the Task Manager. Most Windows users press the shortcut
Ctrl+Alt+Del and then click on Start Task Manager. You can speed this up by pressing the shortcut
Ctrl+Shift+Esc, which will launch Task Manager without an extra click.
You like using the mouse? Opening Task Manager without your keyboard is possible too. Right-click the empty space in your taskbar, then click the Start Task Manager entry. (Windows Vista and XP users: Click Task Manager.)