Thanks for your help, everybody. Although indirectly, you have enabled me to resolve my query.

I'm afraid it already is

Good idea, many thanks. However, it seems that I can only attach files up to 2 MB but my screenshot is 3.45

I keep finding myself in a situation from which the only route to my top ribbon icons such as Gmail or Facebook appears to be via the Search icon

Thank you Paul but the answer to both questions is no. I suspect this is the result of an overnight W10 update!

The D drive I've been using to play discs on an external player has suddenly vanished without trace. How can I restore it, please?

Thanks Denis. After searching unsuccessfully for a particular photo via This PC/Pictures I often seem to be able to find it via C/Users. Also, when using the DuplicateSweeper app, it tells me it...

Can someone please explain the relationship between the various places from which photos may be accessed, eg This PC/Pictures or C/Users/John/Pictures? It seems to me that the contents of each are...