Which is the best Antivirus!!!(not only antivirus but to keep the computer safe)?

see.......... i have used Norton,mcafee,AVG,avira antivir,E scan,quick heal 2007,.................................

i can't get .....which anti virus should i use.............

o.k suggest me a antivirus which is the best and can be downloaded for free.......................................

the first to answer will be choosed as the best answer

Which is the best Antivirus!!!(not only antivirus but to keep the computer safe)?liveupdate

If you prefer free security software, here are some recommendations from available freeware:

firewall (listed in order of preference):

Comodo (http://www.comodo.com), or

PC Tools (http://www.pctools.com/firewall)

Comodo recently released version 3.0 of its firewall, which adds an intrusion prevention component that's very effective, though it does take time for it to learn your system, and requires some ongoing attention by the user to make sure programs don't get improperly blocked. Comodo is one of the strongest firewalls available, freeware or commercial, according to the independent testing site matousec.com.

antivirus: (listed in order of preference)

Avira (http://www.free-av.com)

AVAST! Home (http://www.avast.com)

AVG (http://free.grisoft.com)

all provide realtime protection and automatic updates; all have ICSA and VB100 certification, but Avira has been among the highest rated in tests by several respected US and UK computer publications.