It might mean that you try to install a Windows OS program on your Mac.

If you do not have Mac installation file, please download  it here.

In case you have just purchased the product and 30 days have not passed since your purchase date, please contact us for the license replacement.

Note that in this case the previous license will be permanently blocked. 

If you have previously purchased the license and now migrated to a different OS, we can suggest you a higher migration discount.