Windows or Mac? Where is it getting stuck or any error message? Is it for state?
See if these 2 support articles help
https://ttlc.intuit.com/community/tax-topics/help/there-is-an-update-available-for-your-version-of-t...
And can't install state, state looping
https://ttlc.intuit.com/community/tax-topics/help/state-loop-indicates-turbotax-is-up-to-date-after-...
