TurboTax cannot prepare Form 1040NR or 1040NR-EZ for non-resident aliens. TurboTax can only prepare returns for US citizens and "resident aliens for tax purposes."
TurboTax has a partner for preparing non-resident alien returns called Sprintax (one "t").
You can review their website and FAQ page, and they have email, phone, and chat support.
https://www.sprintax.com/
