You cannot remove or turn off the two year comparison.
This comparison serves as a reminder of what was claimed as income and expenses the previous year.
It won't allow me to file an e-file, only through mail with this feature.
What kind of message are you seeing with regard to the two-year comparison and not being allowed to electronically file? It does not make sense because that information is not sent to the IRS with your tax return and should not affect your filing method.
To delete the Two Year Comparison
Go to Tax Tools in the black panel on the left side of the screen
Click on Tools
Click Delete a Form
Find Two Year Comparison and Click Delete
To delete the Schedule C
Go to Tax Tools in the black panel on the left side of the screen
Click on Tools
Click Delete a Form
Find Schedule C and Click Delete
But if a form is needed for the return, it will come back. So to delete it permanently, you will need to delete the business that it refers to.
To delete the business entry in TurboTax just select the wastebasket to the right of the business name in your self-employed work summary.