What is the best type of antivirus software?

I like Norton.

What is the best type of antivirus software?antivirus

The Norton AntiVirus Software. Downloadable and can be installed to a computer using a compact disc.

What is the best type of antivirus software?computer

The best solution is to use two different products, not just one. Norton and McAfee will work nicely.
Avast antivirus
the most suitable antivirus varies from computer to computer. if one has slow computer he or she would prefer to have antivirus which doesn;t make that pc too slow to be tolerated. and which pc is equiped lots of ram can easily run any antivirus. but in my openion symnetic antivirus 2006 is the best one it provides the best security with daily updates.and the other choice for my self is kespersky.but both of these antiviruses eat alot of system resources so not recommended for slow machines.
I suggest Norton Antivirus, AVG Free, McAfee Virus Scan, and of course, Trend-Macro's Housecall.

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AVG Anti-Virus

AVG Anti-Virus achieved the honor of being voted best antivirus program by readers of Personal Computer World
Symantec Antivirus for sure just look at the ratings compared to the others.
NOD 32

the web site is http://www.eset.com