Which link? Do you need to file a separate Business return?
Turbo Tax Business is not available to do online or on a Mac. You can buy the Window version here. And you can have both TT Business and TT Home & Business (or any personal version) installed on your computer at the same time.
https://turbotax.intuit.com/small-business-taxes
Window System Requirements
https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-...
