Hi,
I would like to purchase 5 Lic. of Avast pro for 3 years.
I need to install 2 programs immediately and 3 in 3 months. My question is when does it start counting the 3 years ?
from the moment i install the first avast - or does it have a different counting per each installation.
Thanks,
koby
The free Home licence goes from the time you are given the key. I think the same would be with payed licences.
See: I register, and I receive a mail with a key, for example, today. From today the duration of the key is counted, as far as I understand it.
If anyone is not agree, please correct me. 
Yes, the key validity is counted from the moment it was issued (sent).