Wow! That's a good outcome.
For future reference: Whenever changing a version of avast! to a higher build number, always do what is called a clean install. If paid, ensure you have your license handy and a copy saved somewhere safe, as you will need it later to continue with it.
Upgrading usually works just fine when moving within one build version, but not to a completely new one.
If you would like to know how to do that (clean install), please reply.