I need expert computer advice about a virus that is going around in Europe.??

My sisters computer is being used to spread a nasty virus, but she believes, that the free edition of AVG, has cleaned her computer, which is not the case, because I still get the same virus send to me in my e mail day after day, I just spam those emails, but my question is, we also talk computer to computer once a week via MSN messenger, do I have to be concerned about getting my computer re infected again?? I just had it reformatted to get rid of this virus, and I do not want to get another virus.

Thanks

Mangerpola


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