This happened before… maybe you could search for ‘sounds’ and find something in the board…
If you install more than one language, you will add new events to Windows Control Panel Sounds, one group for each language.
Are you sure you’re changing the French one?
I read every topic on “sounds”,
without any change.
All my other sounds work fine.
As I explained, I go in control panel, Sounds,
and install the proper sounds, testing if it works.
And everything seams OK.
BUT, as soon as I close the Soud panel,
the sound settings of AVAST desappear,
because when I open the panel Sound again
the settings I just made are gone.
I did the same in the avast program,
(configuration, sound…)
I even set both panels at the same time…