I confirm it too.
(I did not read all the replies in the thread. I'm posting because I think this chrome installation thing is fixed in a new version of the avast and that is what I say below.)
Yesterday on fresh windows install of my friend, I installed Avast from the main website (as i forgot my link for recommendation
) Started installation, chose a custom installation option, but I did not remove any check marks. During the installation process, I saw that the installation is now installing chrome, and I was wondering if I allowed it ??
However after a few minutes ( As I did not wait 30 or 45 as the posts above ) Then I opened task manager and killed the avast installation, and I saw there was process called chrome setup.exe or something, killed it too and then restarted the PC.
The avast installation was completed so everything worked fine.
I ask - Is the installation of the avast setup install chrome in the background, and then after restart shows the prompt window - do you want to install chrome as shown in the first posts of the thread.
EDIT: The computer used Win7, but cant remember if it was x86 or x64.
I installed avast free.
Cheers, From Bulgaria!