Security and Protecting PCs

Question: What suggestions do you have that would be good to share with teachers for Internet security and protecting their PCs, both at school and at home?

The IT Guy says:
Microsoft’s Security Essentials permits Windows users to view information about keeping their particular Windows operating system safe online. For those with Windows XP plus Service Pack 2, the two primary recommendations are to use the new Windows Security Center built into the OS and to use anti-spyware software. Microsoft’s "Security at Home" also provides helpful tips about protecting computers from malware and other problems. Microsoft recommends its Windows Defender, now in a 2nd beta, for antispyware. Some popular third-party software includes Lavasoft’s Adaware and Spybot’s Search and Destroy.

Next Tip: Preventing student network folder access