I use several Windows PCs. I have a four screen desktop i7 PC in my home office, a laptop beside the lounge sofa, A dedicated i7 octa-core Dell for astronomy and a Surface Pro for travelling.
So, if I buy Starry Night, which I am on the verge of doing, can I install and run it on at least two of these PCs? I really only need it on the Astronomy PC and the desktop and it is unlikely, but possible, that I shall run both at the same time. The desktop would be used for research, learning and planning whilst the laptop would come with me to my dark sky site.
I look forward to your reply.