New
#10
Could be me that's confused :)
I re-ran the enable Photo Viewer .reg file, as at 1st I thought the 1803 Update had redone the registry , but that didn't help ( Photo Viewer was still on the list of Defaults Apps, so I don't think now, 1803 touched the Registry )
So I came back to this thread , after remembering I had issues previously with Preview Handlers to see what I did then and neither Option 1 or 2 helped , so on a whim I reversed the previous fix , ie. unchecking the Thumbnails box and Explorer immediately showed me the Preview.....
So I am missing something I guess or I got lucky :)
Thanks as always...
KB