I have long since abandoned Avast, despite having a Premium license, and the desire to go back to talking about the reason for this choice, which was done in the past in several interventions, I do not have.
To help a friend for PC problems we had to uninstall Avast and I had yet another confirmation of how this antivirus, for some time, has been modifying some entries in the Windows Registry in depth. The folders on disk C, Utenti, Programmi and Programmi (x86) after the uninstallation have been renamed in Users, Programs and Program Files (from Italian therefore to English). Of course I think everything is normal!