1) make sur you have fully updated the Federal software before you try to download the state
2) Shut down, reboot the computer and try again
3) Had a person yesterday with a similar issue..whose Virus software was blocking it...temporarily suspend your virus software just before you attempt to download/
still? ...Call Customer Support on the phone:
https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*