Lenovo B70 80 Laptop User Guide

Chapter 2. Starting to use Windows
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Charms and the charms bar (for the Windows 8.1 
operating system)  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
Charms are navigation buttons that let you access basic tasks quickly. 
Charms include: Search, Share, Start, Devices, and Settings. The charms bar 
is the menu that contains the charms.
To display the charms, do one of the following:
 Move the pointer...

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Chapter 2. Starting to use Windows
 Share charm
The Share charm lets you send links, photos, and more to your friends and 
social networks without leaving the app you are in.
 Start charm
The Start charm is a fast way to go to the Start screen.
 Devices charm
The Devices charm allows you to connect or send files to any external 
devices, including the devices to play, print, and project.
 Settings charm
The Settings charm lets you perform basic tasks, such as setting the volume 
or shutting down the...

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Chapter 3. Lenovo OneKey Recovery system
The Lenovo OneKey Recovery system is software designed to back up and 
restore your computer. You can use it to restore the system partition to its 
original status in case of a system failure. You can also create user backups 
for easy restoration as required.
„Backing up the system partition
You can back up the system partition to an image file. This image file can be 
used to restore the system partition. To back up the system partition:
1In Windows, press...

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Chapter 3. Lenovo OneKey Recovery system
3Follow the on-screen instructions to restore the system partition to its 
original status or to a previously created back-up point.
If Windows cannot be started, follow the steps below to start the Lenovo 
OneKey Recovery system:
1Shut down the computer.
2Press the Novo button. From the Novo button menu, select System 
recovery and press Enter.
Notes:
The recovery process is irreversible. Make sure to back up any data you wish to save on 
the system partition...

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Chapter 4. Troubleshooting
Frequently asked questions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
This section lists frequently asked questions by category.
„Finding information
What safety precautions should I follow when using my computer?
The Lenovo Safety and General Information Guide contains safety precautions 
for using your computer. Read and follow all the precautions when using 
your computer.
Where can I find the...

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Chapter 4. Troubleshooting
„Lenovo OneKey Recovery system
Where are the recovery discs?
Your computer did not come with recovery discs.  Use the Lenovo OneKey 
Recovery system if you need to restore the system to its factory status.
What can I do if the back-up process fails?
If you can start the backup but it fails during the back-up process, try the 
following steps:
1Close all open programs, and then restart the back-up process.
2Check to see if the destination media is damaged. Select another path...

Chapter 4. Troubleshooting
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When do I need to change the boot mode? 
The default boot mode for your computer is UEFI mode. If you need to 
install a legacy Windows operating system (that is, any operating system 
before Windows 8) on your computer, you must change the boot mode to 
Legacy Support. The legacy Windows operating system cannot be 
installed if you dont change the boot mode.
„Getting help
How can I contact the customer support center?
See “Chapter 3. Getting help and service” of Lenovo...

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Chapter 4. Troubleshooting
Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
Display problems
When I turn on the 
computer, nothing appears 
on the screen.If the screen is blank, make sure that:
- The AC power adapter is connected to the 
computer, and the power cord is plugged into a 
working electrical outlet.
- The computer power is on. (Press the power button...

Chapter 4. Troubleshooting
25
Incorrect characters appear 
on the screen.Are the operating system or programs installed 
correctly? If they are installed and configured 
correctly, have the computer serviced.
BIOS password problems
I forgot my password.If you forget your user password, you must ask the 
system administrator to reset your user password.
If you forget your HDD password, a Lenovo 
authorized servicer cannot reset your password or 
recover data from the hard disk. You must take your...

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Chapter 4. Troubleshooting
Sound problems
No sound can be heard 
from the speaker even 
when the volume is turned 
up.Make sure that:
- The mute function is off.
- The combo audio jack is not used.
- The speaker is selected as the playback device. 
Battery problems
Your computer shuts down 
before the battery status 
indicator shows empty.
-or-
Your computer operates 
after the battery status indi-
cator shows empty.Reset the battery gauge using Lenovo OneKey 
Optimizer. If the problem persists,...