HP Spectre 13 x2 Pro PC - Manual (Page 23)

Keys
Component Description
(1) esc key Displays system information when pressed in combination with the
fn key (select models only).
(2) fn key Executes frequently used system functions when pressed in
combination with the
b key or the esc key (select models only).
(3) Windows key Returns you to the Start screen from an open app or the Windows
desktop.
NOTE: Pressing the Windows key again will return you to the
previous screen.
(4) Action keys Execute frequently used system functions.
NOTE: Action keys do not display or function on the on-screen
keyboard of the tablet.
ENWW Keyboard base 13