Using external AC power ................................................................................................................... 38
7 Security ...................................................................................................................................................... 39
Protecting the computer ..................................................................................................................................... 39
Using passwords .................................................................................................................................................. 39
Using antivirus software ...................................................................................................................................... 47
Using firewall software ........................................................................................................................................ 47
Installing software updates ................................................................................................................................. 48
8 Maintenance ............................................................................................................................................... 50
Improving performance ....................................................................................................................................... 50
Using Disk Defragmenter .................................................................................................................. 50
Using Disk Cleanup ............................................................................................................................ 50
Updating programs and drivers .......................................................................................................................... 51
ENWW
Conserving battery power .............................................................................................. 37
Disposing of a battery ..................................................................................................... 38
Replacing a battery ......................................................................................................... 38
Disabling DriveLock ........................................................................................................ 46
ix