I suggest you contact Sam at ZWO. He has offered in the past to Teamview into customers PCs to check camera setup, update drivers, load new USB controller software (stock Mircosoft USB comms controller can be problematic), etc. When i first got my 1600 and had stability problems in SGP, Sam fixed it with a Teamview session ( which you watch every step of the way obviously).
BTW when working with drivers, the order in which you do things is important.
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