Lenovo B4400 Laptop User Guide

Chapter 2. Starting to use Windows
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Connecting to a wireless network  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To connect to a wireless network, do the following:
1Press Fn + F5 to turn on the wireless feature.
2View the available wireless networks.
• Windows 7:
Click the wireless network connection status icon in the Windows 
notification area. A list of available wireless networks will be displayed.
 Windows 8.1:
Open the charms bar and select...

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Chapter 2. Starting to use Windows
Help and support  
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If you have questions about using the Windows operating system, refer to 
Windows Help and Support. To access Windows Help and Support, do one 
of the following:
•Windows 7 :
Click  Start  → Help and Support .
 Windows 8.1 :
 Open the charms bar and select  Settings; select Help on the...

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Chapter 3. Lenovo recovery system
The Lenovo 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.
Windows 7 recovery system  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
Two recovery programs are installed on the Windows 7 operating system. To...

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Chapter 3. Lenovo recovery system
„Restoring the operating system
To restore the Windows 7 operating system, do the following:
1Turn off the computer.
2Start the computer. press F11 when the Lenovo logo is displayed.
3Follow the on-screen instructions to restore the operating system. 

Chapter 3. Lenovo recovery system
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Windows 8.1 recovery system  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To launch the recovery program, do the following:
1Turn off the computer.
2Start the computer. press F11 when the Lenovo logo is displayed.
„ Refreshing your computer
It is to restore your computer to the factory default settings while preserving 
the data on the hard disk drive.
To refresh your computer, do the following:
1Open...

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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 which came with your 
computer contains safety precautions for using your computer. Read and 
follow all the precautions when using your...

Chapter 4. Troubleshooting
23 „Lenovo recovery system
Where are the recovery discs?
Your computer did not come with recovery discs. Use the Lenovo recovery 
system if you need to restore the system to its factory status or to a 
previously generated backup.
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...

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Chapter 4. Troubleshooting
When do I need to change the boot priority? 
The default boot priorities are UEFI First for Windows 8 and Legacy First 
for Windows 7. If you need to install a legacy operating system (that is, an 
earlier version than that of your current operating system) on your 
computer, you will need to change the boot priority to Legacy First. The 
legacy operating system cannot be installed if you do not change the boot 
priority.
„Getting help
How can I contact the customer support...

Chapter 4. Troubleshooting
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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...

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Chapter 4. Troubleshooting
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...