Using a USB device ........................................................................................................................... 63
8 Maintaining your computer .......................................................................................................................... 67
Improving performance ...................................................................................................................... 67
Cleaning your computer ..................................................................................................................... 70
Using passwords ................................................................................................................................ 72
Installing software updates ................................................................................................................. 75
Updating the BIOS ............................................................................................................................. 77
viii
Connecting a USB device .................................................................................................. 64
Removing a USB device .................................................................................................... 65
Using Disk Defragmenter ................................................................................................... 67
Using Disk Cleanup ........................................................................................................... 68
Using antivirus software ..................................................................................................... 75
Using firewall software ....................................................................................................... 75