Avast suxx, really. Personally for me, there was: "there aren't any viruses, it's all right, you can go sleep, bla-bla-bla". And, after some time, I got Trojan.Horse, shitty packer and one more bad guy. After messing with this shit, I got Avira (Premium Suite). And yeah, it works! I have used it for two year, and there isn't any viruses yet. Hell yeah :3