Pasword

I don’t speak english well , so don’t be mad for that.
My problem: I can’t to log in to Avast(program, not interten sait. I have changed my password 3 times, and after that my avast is telling me that Your password or Login is not right. I KNOW MY LOGIN! I KNOW MY PASSWORD! What is that? How to change that? HELP ME! (AVAST FREE)

Perform a clean installation of avast.

Clean Install of Avast:
https://goo.gl/4Ptzkf