MSFN is made available via donations, subscriptions and advertising revenue. The use of ad-blocking software hurts the site. Please disable ad-blocking software or set an exception for MSFN. Alternatively, register and become a site sponsor/subscriber and ads will be disabled automatically.
My investigations concluded that during the installation of avast the process named avsx.exe is responsible to install chrome. Just block avsx.exe from running and chrome will be not installed. I.e. Add to Registry the following entry. [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avsx.exe] "Debugger"="logonui.exe" After run avast setup silently. Do not forget after the installation has finished to remove that entry from the registry. Regards