>>>What do you use Sergey ?
>>
>>Avast! free version.
>
>PMFJI. What is the money wasn't an object and you wanted to purchase an AV software? I have seen (in stores) that Kaspersky AV is the most expensive. Would you say, from what you know about it or used it, that it is the best?

I used Kaspersky AV a while ago (a few years) but got rid of it because it was too resource hungry. I dunno about its current state.