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Full user review
The Shields,firewall and antispam are very rough on virus.
High detection rate and low false postives
Light impact on pc
Sandbox,Software updater and browser cleanup are great !!
Nothing..... avast! rocks
Was using the free antivirus and later upgraded to internet security and Now using avast! premier.avast! protects you from all nasty things.If you are going to buy antivirus then avast! is the top pick.
Even avast! free is the best in the free antivirus world