Lenovo G50 User Manual

							Chapter 2. Starting to use Windows 8.1
25
Help and support  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
If you have a problem with the operating system, see the Windows Help and 
Support file. To open the Windows Help and Support file, do one of the 
following:
•Select Settings charm, then select Help.
•Press F1 or Fn + F1 (depending on your keyboard layout).
You can read the Windows Help and Support file on your computer. You can 
also get online help and support by click
ing on one of the two links listed 
under More to explore.
Note:Windows 8.1 also provides an app, Help + Tips. You can find it on the Start screen, to 
learn more information on new features of Windows 8.1. 
						

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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. To back up the system partition:
1Press the Novo button 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:
1Press the Novo button 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 the Novo button menu, select the Lenovo
OneKey Recovery System 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. Th
is 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 start
ed normally. 
						

							27
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 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 pri
nted 
flyers which came with your computer.
Where can I find warranty information?
For the warranty applicable to your computer, including the warranty 
period and type of warranty service, see the Safety, Warranty, and Setup 
Guide (SWSG) that came with your computer.
Drivers and preinstalled software
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.
Lenovo OneKey Recovery System
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.  
						

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Chapter 4. Troubleshooting
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.
BIOS setup utility
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, s
uch 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.
Getting help
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
29
Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
Display problems
When I turn on the computer, 
nothing appears on the screen.•If the screen is blank, make sure that:
-The battery pack is installed correctly. 
- 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 again 
for confirmation.)
- The memory is installed correctly. 
•If these items are properly set, and the screen remains blank, 
hav
e 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. 
						

							30
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, or replace the battery pack with a 
fully charged one.
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 Info
rmation 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 
and 
the battery pack.
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 d
istorted.”
- 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 correct
ly, have the 
computer serviced. 
						

							Chapter 4. Troubleshooting
31
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 and the battery pack. 
•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.  M a k e  sure that 
the BIOS setup utility is set so that the computer starts from 
the de
vice 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 st
art 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 no
t be 
recognized, or the system may shut down as a result. 
						

							33
Appendix A. CRU instructions
Replacing the battery pack - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To  r e p l a c e  the battery pack, do the following:
1Turn off the computer. Disconnect the AC power adapter and all cables 
from the computer.
2Close the computer display and turn the computer over.
3Unlock the manual battery pack latch . Slide the spring-loaded latch to 
the unlocked position to eject the battery pack  . Lift up the inner edge 
of the battery pack, pivoting it on the outer edge . Gently raise the 
battery pack in the indicated direction  to remove it.
4Install a fully charged battery pack.
5Slide the manual battery pack latch to the locked position.
6Turn the computer over again. 
7Connect the AC power adapter and the cables to the computer.
Notes:
•The illustrations used in this appendix are for the Lenovo Z50-70, unless otherwise stated.
• The following steps about upgrading and replacing devices are the same for the 
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/G50-30/G50-45/G50-70/G50-70m/G50-80/
G50-80 Touch/Z40-70/Z40-75/Z50-70/Z50-75.
•Make sure the battery pack has been removed before replacing any devices.
Note: Use only the battery pack provided by Lenovo. Any other battery pack could ignite or 
explode.
a
b
c
d
1
3
2
4
4 
						

							34
Appendix A. CRU instructions
Replacing the hard disk drive  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
You can increase the storage capacity of your computer by replacing the hard 
disk drive with one of greater capacity.  You can purchase a new hard disk 
drive from your reseller or Lenovo marketing representative.
The drive is very sensitive. Incorrect handling can cause damage and 
permanent loss of data on the hard disk. Before removing the hard disk 
drive, make a backup copy of all the i
nformation on the hard disk, and then 
turn the computer off. Never remove the drive while the system is operating 
or in sleep mode. 
Notes:
• Replace the hard disk drive only if you upgrade it or have it repaired. The connectors and 
bay of the hard disk drive were not designed for frequent changes, or drive swapping.
•The preinstalled softwares are not included on an optional hard disk drive.
Handling a hard disk drive
•Do not drop the drive or subject it to physical shocks. Put the drive on a material, 
such as soft cloth, that absorbs the physical shock.
•Do not apply pressure to the cover of the drive. 
•Do not touch the connector.