A:Answer I work at one of the Best Buys in Louisiana and thought I could help. If you end up buying the 1 time purchase, it is good for up to 2 computers (in which it is either 2 Macs or 2 Windows, NOT one of each). With the Subscription, it is up to two computers no matter what format the system is.
In essence, If you have a Windows and a Mac you are trying to run it on, use the subscription. If it is two of the same OS you can do subscription or 1 time purchase.
I believe most Best Buy locations should have both options available. Hope this helps!