Article: Security At Home: Spyware
Video: Protecting your computer from Spyware
Download:  MIcrosoft Windows Update

PRECAUTIONARY STEPS FOR INTERNET AND EMAIL USE:
Aside from installing anti-virus software, Symantec suggests these tips to guard against computer worms:
 •Don't open e-mail from an unknown source.
 •Only open expected e-mail attachments.
 •Don't automatically open e-mail attachments.
 •Don't download programs from Web sites, unless you know and trust the source.
 •Update your anti-virus software regularly.

Source: Symantec