If you are a nonresident, you cannot use TurboTax to prepare your taxes. TurboTax is for full year US residents.
TurboTax does not support nonresident returns.
However we have a partnership with Sprintax offering a
nonresident tax filing solution to our TurboTax customers.
Visit
the TurboTax/Sprintax site for more info or to get started.