recently I did install NANO Antivirus on my System. I Think that it is an amazing software

But I have 3 computers and a limited bandwith, so I must be care to download some files that have more than 100 megabytes.

Is there some option to download only the virus definitions? in that way I only need download the virus definitions 1 time and then, install it offline on all my computers.

See here http://www.nanoav.ru/index.php?option=com_content&view=article&id=16&Itemid=82&lang=en#4