A workaround to this is to use Bootcamp, which is a free multi-boot utility included with Apple’s OS X that assists users in installing Microsoft Windows operating systems on Intel-based Macintosh computers. Parallels does the same thing, but you have to pay for it, so BrillKids usually recommends using Bootcamp since it already comes free with OSX.
Kindly have a look at these links for more information about Boot Camp and Parallels:
You can read these instructions on how to get it working: How to Get Windows Running on Your Mac Bootcamp.
Alternatively, if you have an iPad or an iPhone, you can run Little Reader Touch. The app is free to download. All you need to do is to purchase the curriculum from the BrillKids online store. You can get 10% off with this discount code: BKAFF36716.