Best antivirus software that heals for free?

In addition to a firewall you must have full time (active) virus protection and full time spyware protection.

All the following programs are free.

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Full Time (Active) Virus Protection

If you do not have active virus protection, install only one. All are excellent.

Try AVG first.

AVG Antivirus 7.5 Free Edition

http://free.grisoft.com/freeweb.php/doc/...

http://www.download.com/AVG-Anti-Virus-F...

or

Free antivirus - avast! 4 Home Edition

http://www.avast.com/eng/avast_4_home.ht...

or

AOL Active Virus Shield (powered by Kaspersky)

http://www.activevirusshield.com/antivir...

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Full Time (Active) Spyware Protection

Windows Defender

http://www.microsoft.com/athome/security...

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Install the following five programs and run weekly or at least monthly. You need all five. They will greatly increase your protection. They are not a substitute for full time spyware and virus protection.

Ad-Aware SE Personal (update + full scan)

http://www.lavasoftusa.com/products/ad-a...

Spybot Search %26 Destroy (update + immunize + scan)

Do not enable Tea Timer and SDHelper

After installation: update + scan + immunize

http://www.safer-networking.org/en/mirro...

SpywareBlaster: Update then open and click 鈥渆nable all protection鈥?