Here's some ideas to "roll ya own" Internet Security Suite for free. Free is always the best.
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1. For your Anti-Virus......(Always use only 1 A-V)
I like the FREE, AOL ActiveVirusShield. Don't let the name AOL scare you. ActiveVirusShield is made by Kaspersky which is one of top-rated anti-virus vendors in the world.
In recent tests, the most popular free anti-virus, AVG, was only able to detect about 82% of a very large sample of viruses. On the other hand, ActiveVirusShield was able to detect better than 99% in the same test.
Full test results are here:
http://www.virus.gr/english/fullxml/default.asp?id=82&mnu=82
ActiveVirusShield has excellent virus detection rates and is extremely light on using your computer resources.
Updates many times per day to detect new malware.
Free to anyone, AOL member or not from:
http://www.activevirusshield.com/antivirus/freeav/index.adp?
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2. For your Firewall..........(Always use only 1 firewall)
An excellent free firewall is Comodo Personal Firewall. It can pass firewall "leak tests" that even most of the "paid-for" firewalls cannot pass.
And Comodo has a great support forum. Where the CEO / President of the company might even himself answer your question! Check it out at:
http://www.personalfirewall.comodo.com/
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3. For your Anti-Adware and Anti-Spyware needs...............(use 2)
Pick and choose, 2 anti-spywares from the list below and alternate scanning with them on a regular basis. New spywares are created literally hourly, so no single anti-spyware can really detect all malware. Have at least 2 on hand and alternate scanning with each every few days or so. All are free. All can remove as well as detect.
Spybot Search and Destroy:
http://www.safer-networking.org/en/spybotsd/index.html
Ewido:
http://www.ewido.net/en/download/
Adaware SE:
http://www.lavasoft.de/software/adaware/
A-Squared:
http://www.emsisoft.com/en/software/free/
SUPERAntiSpyware:
http://www.superantispyware.com/
Windows Defender:
http://www.microsoft.com/athome/security/spyware/software/default.mspx
Unfortunately, many "paid for" anti-spyware products are in fact either of limited usefulness or downright scams. When in doubt, look at the list of rogue anti-spyware solutions listed here:
http://www.spywarewarrior.com/rogue_anti-spyware.htm
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4. And to protect your computer from ever getting infected with malware in the first place............ (use them both)
SpywareBlaster:
http://www.javacoolsoftware.com/spywareblaster.html
SiteAdvisor:
http://www.siteadvisor.com/
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Everything here is 100% free!!!!!!
Great luck!