External drives, flash drives, CD-R drive ◦ Back up your data daily and then unplug the external drive.

Flash drive ◦ $50-$100 http://froogle.google.com/froogle?q=flash+drives&hl=en&btnG=Search+Froogle

External drive ◦ $200 http://www.amazon.com/exec/obidos/ASIN/B0007KQOIA/cabledigest61-20/002-1222449-9454441

Original installation CD. ◦ After backing up your data, restore your hard drive to its out of the box condition and reinstall all programs and restore the backed up data.

Free

"Roll back programs" ◦ Restore your hard drive to an earlier state, without losing data.

Hardware firewall routers ◦ Block intrusions, though best supplemented by a software firewall.

Go Back ◦ $50 http://froogle.google.com/froogle?q=%22goback%22&hl=en&btnG=Search

Software firewall (intrusion blocking only) ◦

Windows XP firewall ◦ Free

Software firewall ◦

Zone Alarm ◦ Free http://www.zonelabs.com/store/content/company/products/znalm/freeDownload.jsp

Virus checking software, updated daily ◦

Trend Micro House Call ◦ Free http://housecall.trendmicro.com/

Various ◦ Free http://www.google.com/search?hl=en&q=free+virus&btnG=Google+Search

Self control ◦ Do not open e-mail from suspicious sources. Do not download free programs, unless they are "open source programs," such as Open Office. Avoid text messaging and instant messaging.

Diligence ◦ Update anti-virus, anti-spyware daily.

Spyware programs ◦

Various ◦ http://www.google.com/search?hl=en&q=free+spyware&btnG=Google+Search

Adware and tracking blockers ◦

AdAware◦ Free http://www.lavasoft.de/software/adaware/

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