Good question! That is the same warning I’ve been getting a lot in the last two days – see my thread started today (bbexpert). By the way, when I called Avast, the person on the help line said that “Infekce zablokována” is the name of the malware on my computer. However, when I googled / translated it I learned that it’s really just saying “infection blocked” in Czech. You’d think that the Avast phone people would know that much…

However, I’m not suggesting that you do – or do not – have a virus on your computer. I’ll leave it to the Avast experts here to help you with that.