Cleaning your computer ..................................................................................................................... 67
Using passwords ................................................................................................................................ 70
Installing software updates ................................................................................................................. 72
Updating the BIOS ............................................................................................................................. 75
Using System Diagnostics .................................................................................................................. 77
Restore and recovery ......................................................................................................................... 81
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Replacing a hard drive ....................................................................................................... 61
Using Disk Defragmenter ................................................................................................... 62
Using Disk Cleanup ........................................................................................................... 63
Using antivirus software ..................................................................................................... 72
Using firewall software ....................................................................................................... 72
What you need to know ..................................................................................... 83