Some facts...
Virus Bulletin is kind of an organisation who involved in standardising Anti-Virus software. You might have already heard of it.
See latest test summary. Avast have VB100 for all OSs.
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Avast plays a nice role there too.
More than everything, Avast is free. I'm sure you will say, you don't want the paid version since all important features are there in Avast.
I'm a member in Virus Bulletin for many years now and I always depend on their test results. If you really trust your AV software, they have a virus file for you to test
 (I don't recommend you to run this anyway. Why do we get unnecessary trouble for trying to prove someone else's product is good
  (I don't recommend you to run this anyway. Why do we get unnecessary trouble for trying to prove someone else's product is good   )
 )Worth to give a try.





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