Photoshop Elements Deactivation

Hey guys,

I currently own a retail (Windows and Mac) copy of Photoshop Elements 10.

I understand that the license is for 2 personal computers, but is not cross platform, i.e. can only be used on 2 Macs and not 1 Mac and 1 PC.

I have just ordered Elements 11, and was wondering if, when I deactivate the serial number from my Mac, can it then be used on PC?

If so, I intend to give my Windows using dad my copy of PE10

Cheers,

John