I download avast for mac, but it is in French, how can I change language for English.
Hallo,
the language is taken from system’s preferences, from the “International” pane, “Language” subpane.
So, when you re-order settings there so that English is the top-most one among all suported languages, Avast willstart up in English.
I asume your Finder is french as well - there’s no separate setting for avast only.
regards,
pc