HP 455 Notebook-PC - Manual (Page 18)

Buttons
Component Description
Power button ● When the computer is off, press the button to turn on
the computer.
● When the computer is in the Sleep state, press the
button briefly to exit Sleep.
● When the computer is in Hibernation, press the button
down briefly to exit Hibernation.
CAUTION: Pressing and holding down the power button
will result in the loss of unsaved information.
If the computer has stopped responding and Microsoft®
Windows shutdown procedures are ineffective, press and
hold the power button down for at least 5 seconds to turn
off the computer.
To learn more about your power settings:
1. From the Start screen, type power options.
2. Click Settings, and then select Power Options from
the options displayed or see
Managing power
on page 34 .
10 Chapter 2 Getting to know your computer