Lenovo B4400 Notebook User Manual
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Chapter 1. Getting to know your computer .......................................... 1
Top view .......................................................................................................................1
Left-side view ..............................................................................................................5
Right-side view............................................................................................................8
Front view ....................................................................................................................9
Bottom view ...............................................................................................................11
Chapter 2. Starting to use Windows ................................................... 12
Configuring the operating system for the first time ............................................12
Operating system interfaces ....................................................................................12
Power-saving modes ................................................................................................15
Connecting to a wireless network ..........................................................................17
Help and support ......................................................................................................18
Chapter 3. Lenovo recovery system ................................................... 19
Windows 7 recovery system....................................................................................19
Windows 8.1 recovery system.................................................................................21
Chapter 4. Troubleshooting ................................................................. 22
Frequently asked questions .....................................................................................22
Troubleshooting ........................................................................................................25
Appendix. CRU (Customer Replaceable Units) instructions ............ 29
Replacing the battery ................................................................................................29
Replacing the backup battery..................................................................................31
Replacing the hard disk drive .................................................................................33
Replacing memory ....................................................................................................37
Replacing the Mini PCI Express Card....................................................................40
Removing the optical drive .....................................................................................42
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