DavidR
4
Cancelling the auto renewal won’t stop the renewal reminders as that condition won’t have changed you have X number of days remaining. I think this starts at 28 or 30 days out, but if you are much closer (you don’t say hoe long is left) they would get more frequent.
If your subscription has already expired then it may well still remind you. But if you have no intention of renewal then I would suggest you just go through the normal control panel > programs and features > avast antivirus and uninstall avast. During that process it should offer the option to install the avast free version.