For the transition between specified system input languages, press Alt on the keyboard left click the mouse (or other pointing device) once, and then the "Shift" button with the left mouse button twice. You can also press first the Shift key, and then double-Alt.
To select input language by clicking on the button "EN" (or "EN"), located on the right side of the taskbar with the left mouse button once and selecting from the list that appears the appropriate language.
If the language bar is not displayed on the taskbar, click the right mouse button once. In the list that appears hover your mouse cursor on the line "Panel" and tick the box next to "Language bar".
If you have connected a computer keyboard to change the language layout you can also by pressing the key combination "Alt + Shift" (sometimes "Ctrl + Shift").