Install antivirus software and keep it updated.
You should check for new definition updates daily. Most antivirus vendors offer automatic daily updates to home users, but some - such as Norton AntiVirus - do not. Here's my recommendations for the Top Windows Antivirus Software.
Keep your system patched.
Windows vulnerabilities are constantly being discovered. Visit the Windows Update Center at least monthly to ensure you have all critical patches needed. Viruses continue to exploit old vulnerabilities because many users do not apply patches regularly. Not only does not applying these patches leave your system at risk, it leaves your friends and family at greater risk as well. Remember, if a worm gets on your system because you failed to apply the proper patches, every email address on your system may become the worm's next target. Try explaining that to Grandma Ellie.
Use a firewall.
No Internet connection is safe without one. Firewalls are necessary even if you have a dial-up Internet connection. If you have broadband, your system is even more vulnerable to attack. Several of the recommended antivirus software come with integrated firewalls. Excellent free firewall software is available as well.
Secure your email.
Make sure your email client isn't leaving you open to infection. Visit the Email Help Center for the necessary configuration changes. Attachments are only part of the problem. Unless you configure it properly, apply the patches, AND exercise caution with attachments, your email is your weakest link.
Secure your browser.
If using Internet Explorer, take advantage of the security zones settings to ensure optimum browsing safety. To do this, follow the steps outlined in Securing Internet Explorer. Not only will you enjoy safer browsing, you'll be able to eliminate unwanted pop-ups as well.
Regularly scan for spyware.
Here's a list of the Top Spyware Scanners, based on my extensive testing. Remember to check for new definitions on a regular basis and scan your system at least weekly.
Separate fact from fiction.
Don't fall victim to virus hoaxes that tell you to delete perfectly legitimate files or otherwise spread needless alarm. Visit the Hoax Encyclopedia before forwarding on those dire sounding emails warning of non-existent viruses. To get the true scoop on other falsehoods traveling via email, make Urban Legends and Folklore a regular Internet pit stop.
