Arethusa, I'm sorry that wasn't the silver bullet for your issue. Possibly, depending on how technical you are, the win10 error logs could pinpoint the problem. If not directly by you then perhaps one of the seriously technical-minded people around here. If you know how to set up the error log to look specifically at application errors it might just point to why it's happening if they are looked at by someone who really understands the intricacies. If not, I'm adding a link to a pretty staightforward guide: https://www.digitalmastersmag.com/magazine/tip-of-the-day-how-to-find-crash-logs-on-windows-10/