Are you sure you bought the right version of the security software ?
Take a look at :- shop.mcafee.com
As far as I know, none of the total protection products are for Macs. For Mac, you can either buy " Endpoint Protection for Mac" or Virus scan for Mac. I guess you ended up buying the Windows only version.
Please check and revert.
I have read your post.
Please be informed that McAfee Total Protection does not support MAC operating systems.
Please contact McAfee Enterprise support for further details on the McAfee products that support the MAC operating systems.