7 Managing power .......................................................................................................................................... 41
Running on battery power ................................................................................................................................... 43
User-replaceable battery .................................................................................................................. 43
Finding battery information .............................................................................................................. 45
Conserving battery power ................................................................................................................. 45
Running on AC power ........................................................................................................................................... 47
8 Maintaining your computer .......................................................................................................................... 50
Improving performance ....................................................................................................................................... 50
Using Disk Defragmenter .................................................................................................................. 50
Using Disk Cleanup ............................................................................................................................ 50
Updating programs and drivers .......................................................................................................................... 51
Cleaning your computer ...................................................................................................................................... 51
Cleaning procedures .......................................................................................................................... 51
Using passwords .................................................................................................................................................. 54
Setting Windows passwords ............................................................................................................. 54
Cleaning the display ........................................................................................................ 52
ix