Thanks for your reply, in answer to your questions:
1. I'm running Windows10 Version 33H2 (OS Build 19045.3803). Application Version Number 21.15.8.493(1)
2. The main window is/was green, and there were no notifications that I was aware of (only the Windows Security one shown in the image I posted)
3. As per the image posted originally. Also attached is a screen capture as at the current time (4.30pm AEST)
4. I can't replicate this as the events happened yesterday.
5. Done
6. System restart was carried out when the events occurred yesterday.
UPDATE: Just before I posted this response, the application came up & told me my licence had expired - it hasn't, my subscription is valid to 30.8.25. I logged into myKaspersky and reconnected the app (as per instructions).
Other than that notification I have not had any warnings from Windows Security to turn on virus & thread protection today..
I guess my issue now is why did the app suddenly decide that my licence had expired?
Thanks for your assistance.