Rosemary Thank you for this information. I lodged a ticket with ESRI, waiting to hear back from them. My computer came installed with windows 10, so I'm not even sure how to reinstall windows. I don't have a dvd. The only way to turn off windows updates in 10 is to set my connection to metered. But then, I worry about not getting security updates. I will update you if I discover a solution to this problem. Roger
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