Avast Free Antivirus
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Full user review
"You will notice difference against paid paid protection"
Its free and interface is easy to use.
Does not pick anything up, not worth having. The only thing this program takes is space on my hard drive.
I have used Norton and this one side by side and I am sorry to say; 1) Scan takes longer to complete, 2) did not pick anything up whilst Norton did.
Overall I would say, you pay for what you get