How to: Close a program without switching to it.
Solution:
Right-click the program button and select 'Close'.
1) Right-click the program button on the Taskbar.
2) Select 'Close' from the pop-up menu.
3) If the program does not close:
a) Press CTRL+ALT+DEL. (A list of active applications appears.)
b) Select the application to close.
c) Click 'End Task'.