Hi Peter
I have asked around on net and l haven't got a satisfactory answer. I have a older hp laptop running win 7 and everything runs perfect. My other is a win 10 . I have had issues with a apwin which l use for photometry work and there were issues that. In fact folks around the world were complaining over win 10 which is the culprit. Mine works ok in win 10 now but occasionally l have to register win then it works. It seems to happen when win 10 updates. Sky X may be the solution but can be expensive if you haven't got a registered copy. I have the sky 6 pro and the newer version is too much to pay for. I have bought Guide 9.1 for my win 10 laptop to see if things work, which should do. Guide 9 is not pretty but covers everything ànd the regular updates are free and you can can as much data , catalogues etc as you want. Its also Ascom friendly.
Steve J