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Lenovo Ideapad 100s 14ibr User Guide

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Page 21

Chapter 3. Recovery system
17
I uninstalled a preinstalled software, but there is no significant increase in the free drive space.
The copy of Windows running on your computer may be WIMBoot-enabled. For computers  with WIMBoot-enabled Windows, the majority of  files needed for preinstalled software are  
installed on the Recovery Partition and won’ t be deleted through normal uninstallation.
What happens if I attempt to delete or modify the Recovery Partition?
Attention: •Do not delete or modify the...

Page 22

18
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  Safe
 ty and General Information Guide  which came with your computer contains safety 
precautions for using your computer. Read and follow...

Page 23

Chapter 4. Troubleshooting
19
When do I need to change the boot mode?The default boot mode  for your c
 omputer 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.
 Getting help
How can I contact the customer support...

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20
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:
- T
he AC power adapter is connected to the computer, and 
pl ugged into a workin

g electrical outlet.
- The computer power is on....

Page 25

Chapter 4. Troubleshooting
21
Sleep problems
The critical low-battery 
error message appears, 
and the computer 
immediately turns off.•
The batte ry p
ower is getting low. Connect the AC power 
adapter to the computer.
The computer enters sleep 
mode immediate
 ly 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 ....

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22
Chapter 4. Troubleshooting
Sound problems
No sound can be heard 
from the speaker even 
when the volume is 
turned up. •
Make sur e 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. •
D
ischarge and recharge the battery pack.
The computer does not...

Page 27

Chapter 4. Troubleshooting
23
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.
• Y
our 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 fr
 om a device you 
want. •
See the  Boot m enu of the BIOS setup utility. Make sure that...

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24
Trademarks
The following terms are trademarks or registered trademarks of Lenovo in the United States, 
other countries, or both.
Lenovo
ideapad
Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other 
countries, or both.
Other company, products, or service names may be trademarks or service marks of others. 

Page 29

©Lenovo China 2015
en-US
Rev. RP01 
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