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Lenovo 29583BU Lenovo G450/G550 User Guide V1.0 - Page 23

Special keys and buttons, Volume buttons and OneKey Rescue System button

UPC - 884942251771

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Chapter 2. Learning the basics Special keys and buttons Your computer has several special keys and buttons. „ Volume buttons and OneKey Rescue System button c ba d Volume buttons (a~c) (specific models only) a Volume up b Volume down c Mute/Unmute OneKey Rescue System button ( d) • When the computer is powered-off, press this button to enter the OneKey Rescue System if Lenovo OneKey Rescue System has been preinstalled. • In Windows operating system, press this button to start Lenovo OneKey Recovery. Note: For details, see "OneKey Rescue System" on page 23. 15

Section	Page
Important safety information	6
Important safety information	6
Chapter 1. Getting to know your computer	9
Top view	9
Left-side view	12
Right-side view	13
Front view	14
Bottom view	15
Chapter 2. Learning the basics	17
First use	17
Using AC adapter and battery	19
Using the touchpad	20
Using the keyboard	21
Special keys and buttons	23
System status indicators	24
Securing your computer	25
Connecting external devices	26
Chapter 3. Using the computer network	29
Wired connection	29
Wireless connection	30
Chapter 4. OneKey rescue system	31
OneKey Rescue System	31
Chapter 5. Troubleshooting	32
Frequently asked questions	32
Troubleshooting	34
Chapter 6. Upgrading and replacing devices	38
Replacing the battery	38
Replacing the hard disk drive	39
Replacing memory	41
Removing the optical drive	43
Appendix A. Getting help and service	45
Getting help on the Web	45
Calling the customer support center	45
Getting help around the world	46
Lenovo warranty service telephone numbers	47
Appendix B. Use, and care information	48
Caring your computer	48
Accessibility and comfort	51
Maintenance	52
Appendix C. Lenovo limited warranty	54
Warranty information	58
Appendix D. Customer replaceable units (CRUs)	61
Appendix E. Notices	62
Notices	62
ENERGY STAR model information	64
Wireless related information	65
Electronic emissions notices	67
WEEE and recycling statements	70
Turkey EEE declaration of conformity	70
EU WEEE statements	70
Japan recycling statements	71
Notice for users in the U.S.A.	72
Notice on deleting data from your hard disk	72
Appendix F. Lenovo regulatory notice	73
Lenovo regulatory notice	73
Appendix G. Features and specifications	104
Trademarks	105

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Chapter 2. Learning the basics

Special keys and buttons

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Your computer has several special keys and buttons.

Volume buttons and OneKey Rescue System button

Volume buttons (

) (specific models only)

Volume up

Volume down

Mute/Unmute

OneKey Rescue System button (

)

•

When the computer is powered-off, press this button to enter the OneKey Rescue System if

Lenovo OneKey Rescue System has been preinstalled.

•

In Windows operating system, press this button to start Lenovo OneKey Recovery.

Note:

For details, see “OneKey Rescue System” on page 23.