I got through: copy registration number; open Avast Settings.
Next step is to click arrow next to off-line registration - there is no arrow and no off-line registration.
I tried inserting the license key in what window I could find, but it would not take.
The previous version: 2015.10.2.2218 was installed on April 3, 2015 and is set to expire May 4, 2015. I have not had Avast coverage for at least a week.
This type of nonsense is exactly why I quit using Avast a long time ago.You have not made any improvements, that I can find.