Here's my experience on both Windows and Mac.
I have Windows. I logged into my account and went to Downloads. I first clicked on Copy Code then on the download. After it downloaded I clicked on the exe file. Got a little worried when it didn't ask to Activate when installing. But when it was done I clicked on Launch Now and the first thing the Activate box popped up and I did Ctrl+V to paste the code and it worked!
To install on Mac. I bought the CD from Costco and don't have a CD drive on the Mac. Was able to download it. It went very smooth. When you see the download on the screen to download, first click on the blue Copy Code link to the left. Then after you install it and need to activate you can do Command + V to paste the code into the box.
There should be a card in the CD case that says how to download it and you will need the 14 digit code from it to enter.
When you goto your online account to download it don't click on the very bottom link that says online. That takes you to the Online web version not to download the Desktop program.
