I don’t think that’s the answer, Brian, the history data is erased when downloaded to wmr200history.txt. I’ve been reporting exactly the same problem as Sticky for some time now. . . I don’t mind losing a few minutes for minor W10 restarts, but not hours at a time. I’m keeping the longer wmr200history.txt files in case I ever find out how to decode them, but it would be much nicer if you could help us get the history routine running properly again.