HP ProBook 640 G1, 645 G1, 650 G1, and 655 G1 Notebook PCs - Maintenance and Service Guide

Keys
NOTE: Refer to the illustration that most closely matches your computer.
Component Description
(1) esc key Displays system information when pressed in combination with
the fn key.
(2) fn key Executes frequently used system functions when pressed in
combination with a function key, the num lk key, the esc key, or
the b key.
(3) Windows button Returns you to the Start screen from an open app or the
Windows desktop.
NOTE: Pressing the Windows button again will return you to
the previous screen.
(4) Function keys Execute frequently used system functions when pressed in
combination with the fn key.
(5) Windows applications key Displays options for a selected object.
(6) Embedded numeric keypad When the keypad is turned on, it can be used like an external
numeric keypad.
Each key on the keypad performs the function indicated by the
icon in the upper-right corner of the key.
(7) num lk key Turns the embedded numeric keypad on and off when pressed
in combination with the fn key.
Keys 13