However, Duplicate Cleaner has totally frozen, and will not respond to any actions that I attempt. I am lost after 21 hours of scanning. Where do I go from here? What have I done, or not done, to cause this problem?
I have taken a screen-shot of the info that I have, but I cannot attach that to this post!!
Pasting a link does not work, dragging the file does not work. Nothing seems to work very well, apart from the initial scan, which seemed to work very well over the 21 hours it took to complete.

Maybe you can please give me some additional advice on this matter.