@Loungehake,
I posted this query elsewhere and was directed here by DavidR, I now have the very same problem the last couple oif days, The Avast icon in task bar shows a red X and shows' you are unprotected' when hover pointer on it. I went into the interface, looked at virus definitions, ran the check for virus definitions updates which it did but nothing happened, it was running the green slider across the bar for a bit then offered no prompt to restart laptop etc for changes to take effect , although the green dot is set on update automatically, it isnt doing that. Seems whatever I do isnt sorting this, I'm only a basic home user so dont understand the high tech side if things. The version the Avast interface shows I have is 23,10,6086 with the date October 9th 23. I also read in another thread yesterday that version 9,10 amd 11 are no longer receiving virus definition updates, confusing huh as I have 10 and I cannot get the darn thing to update virus definitions so am now stuck and dont know what I should do to sort this.
@DavidR - I found this thread which is the same problem as you suggested I look up, I am still none the wiser on what to do to sort this.