If you upgrade Turbo Tax to Home and Office can you complete a LLC tax return? How can you get the 1120 Form?

[VolvoGirl]

No.  You need Turbo Tax Business.
The small business program (TT Business) is for 1120 Corporation, 1120S Corp, 1065 Partnership or 1041 Estate/Trust returns and will not do your personal 1040 return.   It  is a separate program from the Desktop Home & Business program or the Online Self Employed version.

Home & Business Desktop program or the Online Self Employed version is for personal returns that include a schedule C for self employment or sole proprietor. A single owner LLC would be reported on Schedule C unless the LLC elected to be treated as an S corp or C corp.

You will get a schedule K-1 (or a W2) from the business return to manually enter into your personal 1040 return.

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