What is the best antivirus(compatible with vista buisness)?

how can I download it for free?
I prefer sth that is updated automatically!
thanks in advance!

If you want a free anti-virus I recommend in order of popularity, but please choose the right one for you (install only one):

1. AVG Free
a. A simple interface (easier to use than Avast! and Avira)
b. Can detect about 82.82% of viruses
Cons: low virus detection

2. Avast!
a. Real-time protection
b. It has an option to delete a virus once found
c. Can detect about 87.46% of viruses.
Cons: Too many icons and confusing user interface

3. Avira AntiVir
a. It can detect malware better than Avast and AVG
b. It's cute umbrella icon
c. Can detect about 94.26% of viruses
Cons: A very sluggish update

Whatever you decide do not ever get Norton, it will slow down and ruin your computer. The best anti-virus you can get is Kaspersky or NOD32 (recent tests at av-comparatives.org).

All these anti-virus programs work with Vista.

Norton 360

Recommend: AVG

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