Filed personal and business last year 1120 did not populate is there a reason why the 1120 did not populate

Did not populate where?  Did you use the Windows Business Desktop program to do the 1120 return?  Then manually enter the K-1 and/or W2 into your personal return?  Turbo Tax Business is not the same as Home & Business program.  

Turbo Tax Business is a separate program from Home & Business.  TT Business is for 1120 Corporation, 1120S Corp, 1065 Partnership or 1041 Estate/Trust returns. Not for self employed independent contractors.  Turbo Tax Business  is not available to do online or on a Mac.  You can buy the Window's 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.

You need Turbo Tax Business.  It  is a separate program from Home & Business.  It is not available to do online or on a Mac.

You can buy the Window's version here…..

https://turbotax.intuit.com/small-business-taxes