The program sticks on the 1099-MISC, so I suggest you first delete it.
To Delete:
For TurboTax Desktop, switch to Forms (Upper right corner)
TurboTax Online:
Select Tax Tools on the left side-bar
Select Tools from that drop-down
Select “Delete a form” on the TOOLS CENTER screen
Select the Form 1099-MISC and Delete
When you reenter you must answer
No, not like work
Only received this one tax year
No, not with intent to earn money
You might get this year after year, but you need to report only this year for the program to not insist on Schedule C.
This is a TurboTax question, not IRS questions.
Your answers are not reported on your tax return, it is just the way TurboTax decides if the 1099-MISC is Self-Employment.