HP ProBook 450 G10 Maintenance And Service Manual page 22

Table 2-7 Special keys and their descriptions
Component
(1)
(2)
(3)
(4)
(5)
(6)
(7)
14 Chapter 2 Components
esc key
fn key
Windows key
Action keys
Power button
num lk key
Integrated numeric keypad
Description
Displays system information when pressed in combination
with the fn key.
Executes frequently used system functions when pressed in
combination with another key. Such key combinations are
called hot keys .
Opens the Start menu.
NOTE: Pressing the Windows key again will close the Start
menu.
Execute frequently used system functions.
● When the computer is off, press the button briefly to
turn on the computer.
● When the computer is on, press the button briefly to
initiate Sleep.
● When the computer is in the Sleep state, press the
button briefly to exit Sleep (select products only).
● When the computer is in Hibernation, press the button
briefly to exit Hibernation.
IMPORTANT: Pressing and holding down the power button
results in the loss of unsaved information.
If the computer has stopped responding and shutdown
procedures are ineffective, press and hold the power button
for at least 4 seconds to turn off the computer.
To learn more about your power settings, use the Power icon.
● Right-click the Power icon
on your product, select Power and sleep settings or
Power Options.
Turns the embedded numeric keypad on and off when
pressed in combination with the
– or –
Turns the embedded numeric keypad on and off.
– or –
Alternates between the navigational and numeric functions
on the integrated numeric keypad.
A separate keypad to the right of the alphabet keyboard.
When num lk is pressed, the integrated keypad can be used
like an external numeric keypad.
NOTE: If the keypad function is active when the computer is
turned off, that function is reinstated when the computer is
turned back on.
and then, depending
fn key.