On my case it doesn't even appear my friend installed it (he did through the link and respecting all terms, he sent me pictures), I even tried it on my other computer, it still shows up as 0 friends installed.
Hi,
Has it been more than 48 hours since they installed it?
Have you adhered to all the conditions as mentioned here
https://www.avast.com/recommendation-terms-and-conditionse.g.
Please make sure that:
a) Your friend installs Avast Free Antivirus directly through your personal recommendation link, found in the ‘Earn Rewards’ section.
b) Your friend installs Avast Free Antivirus on a Windows PC (Mac OS installations will not count as a successful recommendation as it is currently not supported).
c) Your friend’s PC must be connected (and stay connected) to the internet during the entire installation, so that we may know you’ve recommended a new user.
d) Your friend must not have Avast Free Antivirus already installed on their PC when using your recommendation link to download the product.
e) And most importantly: for your share to count as a successful recommendation, your friend must keep Avast Free Antivirus installed on their PC.