Initiating and exiting Sleep ............................................................................................................... 38
Running on battery power ................................................................................................................................... 40
Displaying battery charge ................................................................................................................. 41
Conserving battery power ................................................................................................................. 41
Factory-sealed battery ...................................................................................................................... 42
Running on external power ................................................................................................................................. 42
7 Security ...................................................................................................................................................... 44
Protecting the computer ..................................................................................................................................... 44
Using passwords .................................................................................................................................................. 44
Using antivirus software ...................................................................................................................................... 52
Using firewall software ........................................................................................................................................ 52
Installing software updates ................................................................................................................................. 53
Disabling DriveLock ........................................................................................................ 51
ix