Best free antivirus

Do you know the most used free antivirus programs today.

Best Antivirus Programs

1-AD-Aware Free Antivirus 4.6

2-Avast Free Antivirus 6.0.1367

3-AVG Anti-Virus Free 2012

4-Avira Free Antivirus

5 -comodo antivirus 5.9.2

6-EMSİSOFT ANTI-MALWARE 6.0

7-Microsoft Security Essentials 2.1.11160

8-Outpost Security Suite Free 7.1

9-PC Tools Antivirus Free 2012

10-Spyware Doctor Antivirus 2010

11-Comodo+firewall antivirus

12 -.Bitdefender

13-Avast! Free antivirus

14-Antivirus rising