The software itself you will need a new version if you are changing from Mac to Windows PC.
I am not sure if the license is locked to a particular machine or platform.
As far as I know it is just a number that you must input when you start the software.
If that is the case then it should work on both.
I could be wrong though.
Best option is just to try it yourself.
If you need to download a new license you will soon find out.
As I say though, you will definitely need the Windows version of the software.
One of the forum moderators.
Versions 6.5 to 25
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision 3510 - i7 6820HQ @ 2.70GHz, 16GB RAM, AMD FirePro W5130M, Windows 10