2 Windows or
Or 1 Windows + 1 Mac
thanks for the info.
Just to be more specific the license is single owner/user with two active installations Mac & or PC with one in use at any point in time.
Yes, you can install on any two computers. If you were to try to install on a third, the install dialog would tell you that you have already installed on two computers and if you want to install on this other computer, you need to "deactivate" first on one of your other computers.