Lenovo B50 10 Laptop User Guide

							Chapter 2. Starting to use Windows
17
 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 computer. Also, you can get to the Control Panel through the Settings charm when on the 
Desktop screen. 
						

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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 the Novo button or double-click OneKey Recovery icon to start the
Lenovo OneKey Recovery System.
2Click System Backup.
3Select a back-up location and click Next to start the backup.
Restoring
You can choose to restore the system partition to its original status or to a previously created 
back-up point. To restore the system partition:
1In Windows, press the Novo button or double-click OneKey Recovery icon to start the
Lenovo OneKey Recovery System.
2Click System Recovery. The computer will restart to the recovery environment.
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, then follow the steps below to start the Lenovo OneKey Recovery 
System:
1Shut down the computer.
2Press the Novo button. From Novo Button Menu, select System Recovery and press Enter.
Notes:
•If your computer is preinstalled with a GNU/Linux operating system, OneKey Recovery System is not 
available.
•To utilize the features of the OneKey Recovery System, your hard disk already includes a hidden 
partition by default to store the system image file and the OneKey Recovery System program files. 
This default partition is hidden for security reasons, which explains why the available disk space is less 
than the stated capacity.
Notes:
•You can choose a back-up location on the local hard disk drive or an external storage device.
•Remove the removable hard disk drive before starting the Lenovo OneKey Recovery System. 
Otherwise, data from the removable hard disk drive might be lost.
•The back-up process may take a while.
•The back-up process is only available when Windows can be started normally.
Notes:
•The recovery process is irreversible. Make sure to back up any data you wish to save on the system 
partition before starting the recovery process.
•The recovery process may take a while. So be sure to connect the AC power adapter to your computer 
during the recovery process.
•The above instructions should be followed when Windows can be started normally. 
						

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Chapter 4. Troubleshooting
Frequently asked questions  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
This section lists frequently asked questions by category.
Finding information
Drivers and preinstalled software
Lenovo OneKey Recovery System
What safety precautions should I follow when using my computer?
The Lenovo Safety and General Information Guide which came with your computer contains safety 
precautions for using your computer. Read and follow all the precautions when using your 
computer.
Where can I find the hardware specifications for my computer?
You can find the hardware specification for your computer on the printed flyers which came 
with your computer.
Where can I find warranty information?
For detailed warranty information on this machine, please visit below website to check out: 
support.lenovo.com/warrantystatus
.
Where are the installation discs for Lenovo preinstalled software (desktop software)?
Your computer did not come with installation discs for Lenovo preinstalled software. If you 
need to reinstall any preinstalled software, you can find the installation program on the 
D partition of your hard disk. If you cannot find the installation program there, you can also 
download it from the Lenovo consumer support website.
Where can I find drivers for the various hardware devices of my computer?
If your computer is preinstalled with a Windows operating system, Lenovo provides drivers for 
all the hardware devices that you need on the D partition of your hard disk. You can also 
download the latest device drivers from the Lenovo consumer support website.
Where are the recovery discs?
Your computer did not come with any recovery discs. Use the Lenovo OneKey Recovery System 
if you need to restore the system to its original 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 and then try again.
When do I need to restore the system to its factory status?
Use this feature when the operating system fails to start up. If there is critical data on the system 
partition, back it up before starting recovery. 
						

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Chapter 4. Troubleshooting
BIOS setup utility
Getting help
What is the BIOS setup utility?
The BIOS setup utility is a ROM-based software. It displays basic computer information and 
provides options for setting boot devices, security, hardware mode, and other preferences.
How can I start the BIOS setup utility?
To start the BIOS setup utility:
1Shut down the computer.
2Press the Novo button and then select BIOS Setup.
How can I change the boot mode?
There are two boot modes: UEFI and Legacy Support. To change the boot mode, start the BIOS 
setup utility and set boot mode to UEFI or Legacy Support on the boot menu.
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 operating 
system, such as Windows, Linux or Dos, etc. (that is, any operating system before Windows 8) 
on your computer, you must change the boot mode to Legacy Support. The legacy operating 
system, such as Windows, Linux or Dos, etc. cannot be installed if you dont change the boot 
mode.
How can I contact the customer support center?
See “Chapter 3. Getting help and service” in the Lenovo Safety and General Information Guide. 
						

							Chapter 4. Troubleshooting
21
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 
plugged into a working electrical outlet.
- The computer power is on. (Press the Power button again 
for confirmation.)
•If these items are properly set, and the screen remains blank, 
have the computer serviced.
When I turn on the 
computer, only a white 
cursor appears on a blank 
screen.•Restore backed-up files to your Windows environment or the 
entire contents of your hard disk to its original factory 
contents using the Lenovo OneKey Recovery System. 
If you still see only the cursor on the screen, have the 
computer serviced.
The screen goes blank 
while the computer is on.•Your screen saver or power management may be enabled. 
Do one of the following to exit from the screen saver or to 
resume from sleep mode:
-Touch the touchpad.
- Press any key on the keyboard.
- Press the Power button.
- Press F9 (   ) to confirm whether the backlight of the 
LCD screen has been turned off.
BIOS password problems
I forgot my password.•If you forget your user password, ask the system 
administrator to clear your user password.
•If you forget your hard disk drive password, a Lenovo 
authorized servicer cannot reset your password or recover 
data from the hard disk. You must take your computer to a 
Lenovo authorized servicer or a marketing representative to 
have the hard disk drive replaced. Proof of purchase is 
required, and a fee will be charged for parts and service.
•If you forget your administrator password, a Lenovo 
authorized servicer cannot reset your password. You must 
take your computer to a Lenovo authorized servicer or a 
marketing representative to have the system board replaced. 
Proof of purchase is required, and a fee will be charged for 
parts and service. 
						

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Chapter 4. Troubleshooting
Sleep problems
The critical low-battery 
error message appears, 
and the computer 
immediately turns off.•The battery power is getting low. Connect the AC power 
adapter to the computer.
The computer enters sleep 
mode immediately after 
Power-on self-test 
(POST).•Make sure that:
- The battery pack is charged.
- The operating temperature is within the acceptable range. 
See “Chapter 2. Use and care Information” in the Lenovo 
Safety and General Information Guide.
Note:If the battery pack is charged and the temperature is within range, have the computer serviced.
The computer does not 
return from sleep mode, 
and the computer does not 
work.•If your computer is in sleep mode, connect the AC power 
adapter to the computer, then press any key or the Power 
button.
•If the system still does not return from sleep mode, stops 
responding, or cannot be turned off, reset the computer. 
Unsaved data may be lost. To reset the computer, press and 
hold the Power button for four seconds or more. If the 
computer is still not reset, remove the AC power adapter.
Display panel problems
The screen is blank.•Do the following:
- If you are using the AC power adapter or the battery pack, 
and the battery status indicator is on, press F12 (   ) to 
make the screen brighter.
- If the power indicator is blinking, press the Power button to 
resume from sleep mode.
- If the problem persists, follow the solution in the next 
problem “The screen is unreadable or distorted.”
- Press F9 (   ) to confirm whether the backlight of the 
LCD screen has been turned off.
The screen is unreadable 
or distorted.•Make sure that:
- The display device driver is installed correctly.
- The screen resolution and color quality are correctly set.
- The monitor type is correct.
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. 
						

							Chapter 4. Troubleshooting
23
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 being used.
- Speakers are selected as the playback device.
Battery pack problems
Your computer shuts down 
before the battery status 
indicator shows empty.
-or-
Your computer operates 
after the battery status 
indicator shows empty.•Discharge and recharge the battery pack.
The computer does not 
operate with a fully 
charged battery pack.•The surge protector in the battery pack might be active. 
Turn off the computer for one minute to reset the protector; 
then turn on the computer again.
A hard disk drive problem
The hard disk drive does 
not work.•Make sure that the hard disk drive is included in the Boot 
menu in the BIOS setup utility correctly.
OneKey Recovery System problems
Backup cannot be made.•Make sure that you are currently using a Windows operating 
system.
•There may not be enough space to store the backed-up data. 
You will need to free more hard disk space on your backups 
partition.
Failure to restore system 
partition to factory default.•The system partition (e.g. the partition size or the drive 
capacity of C) has been modified. 
						

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Chapter 4. Troubleshooting
Other problems
Your computer does not 
respond.•To turn off your computer, press and hold the Power button 
for four seconds or more. If the computer still does not 
respond, remove the AC power adapter.
•Your computer might lock when it enters sleep mode during 
a communication operation. Disable the sleep timer when 
you are working on the network.
The computer does not 
start from a device you 
want.•See the Boot menu of the BIOS setup utility. Make sure that 
the BIOS setup utility is set so that the computer starts from 
the device you want.
•Also make sure that the device from which the computer 
starts is enabled. Make sure that the device is included in the 
Boot menu in the BIOS setup utility correctly.
•While turned off, press the Novo button to select the device 
you want the computer to start from.
The connected external 
device does not work.•Do not connect or disconnect any external device cables other 
than USB while the computer power is on. Otherwise, you 
might damage your computer.
•When using high power consumption external devices such 
as an external USB optical disk drive, use an external device 
power adapter. Otherwise, the device may not be recognized, 
or the system may shut down as a result. 
						

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Appendix A. CRU instructions
Removing the keyboard   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To remove the keyboard, do the following:
1Turn off the computer. Disconnect the AC power adapter and all cables from the computer.
2Close the computer display, and then turn the computer over.
3Remove the screws that secure the keyboard  .
4Turn the computer over, and then open the computer display.
5Push the keyboard with the tip of an unfolded paper clip (or similar object without a sharp 
tip) through the screw hole on the back cover.
6Loosen the keyboard with fingers  , and then lift the keyboard slightly  .
a
1
1
1
bc
3
2
2 
						

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Appendix A. CRU instructions
7Disconnect the keyboard connector in the direction shown by arrows   and  . Then 
remove the keyboard.de
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