Cleaning your computer ..................................................................................................................... 55
Using passwords ................................................................................................................................ 58
Installing software updates ................................................................................................................. 60
Updating the BIOS ............................................................................................................................. 63
Using System Diagnostics .................................................................................................................. 64
Restore and recovery ......................................................................................................................... 68
viii
Using antivirus software ..................................................................................................... 60
Using firewall software ....................................................................................................... 60
What you need to know ..................................................................................... 70
models only) ...................................................................................................... 70