On hindsight you are right. I never removed the source, it was only a copy and paste. Whatever happened seems to be an error in my Windows 10. The only remnant of the sending folder was a name with no files in it. To do that folder in small pieces would take at least a day. In the past the larger file was of 250plus GB was done as one move, maybe that was my lucky day! The saving grace is I triple back up, albeit in folder and files that get larger over the days and weeks.