They are functional only during the session of the Simple User Interface (SUI). The Home version doesn’t store this data after you close the SUI. When you open the SUI again these will be greyed out (not available rather than non-functional) as the data is no longer available.
This hasn’t changed as far as I can recall in a little over four and a half years I have been using avast Home.
Thank you very much for your replies. The contents were duly noted.
I have not checked scan reports for a long time and did not realize that when you close after a scan that was the end of that. After reading your threads, I asked my wife if she looked through the reports after scanning and she replied in the affirmative.
I will have to be more attentive to things otherwise I’ll be lost.