HP EliteBook 840 G3 - Manual (Page 22)

Component Description
▲ Type power in the taskbar search box, and then select
Power and sleep settings.
‒ or –
Right-click the Start button, and then select Power
Options.
(2) Speakers Produce sound.
(3) Wireless button Turns the wireless feature on or off but does not establish a
wireless connection.
A wireless network must be set up before a wireless connection is
possible.
(4) Volume mute button (select products only) Mutes and restores speaker sound.
(5) Fingerprint reader (select products only) Allows a fingerprint logon to Windows, instead of a password
logon.
12 Chapter 2 Components