Thanks for your reply and suggestions. When I click OK the popup closes. I was not sure if there was any other result (partly because I have another problem with sound,which may or may not be related (see below). But I had not been able to get the speech to text function to work. So I downloaded a couple of speech apps from the store, which took some time to get them working but as eventually I suceeded that shows the 'function is functioning' once I master the relevant app. So I still have possibly pointless popups.
Now to the issue I have with sound. This may not be relevant to this post so if so let me know and I will open another if necessary, but just in case I will briefly outline it here. For several weeks I have been getting really terrible screeching from the speakers (both internal and external) which reminds me of the feedback howel when a public address system is malfunctioning. Also, I can hear 'background' noise, echoing such as the TV or coughing noises I make, in addition to the intended sound from an app, such as music or spoken text. At least for the short term I have stopped this by changing settings in Ear Trumpet or Volumey. In the latter if I move the slider for SVCHOST to very / low or zero the screeching stops while sound from speekers remains OK. I know that SVCHOST can refer to many things but I would like to know what its relevance is in this case?