turbo home and business

You might be confusing names of software.  Premium is the name of an online --web-based --  version.   Premier is desktop software.  Did you purchase and download Premier?

Every version of desktop software has all of the forms and all of the schedules.  You get more help in the interview screens with Home and Business.

  All you needed to do---if anything-- was upgrade Premier to Home and Business.  You cannot have two versions of 2024 desktop software on the same computer.   You could open up Premier, go to the to top of the TT screen, look for the symbol that looks like this   >>> on the top right--click it and upgrade to Home and Business and just pay the difference between the price you already paid for Premier and the price for Home and Business.

Seek a refund for the unnecessary purchase of the second download.

To request a refund for a TT product

https://ttlc.intuit.com/turbotax-support/en-us/help-article/intuit-refunds/request-refund-turbotax-product/L834M6uyW_US_en_US?uid=m6meybc2

There is a way to have 2 licenses. Under Help - Switch Product - Activate new product.   Then you may have to restart Turbo Tax.