State shows as downloaded but it asks to update every time

Try running the Windows Fix-It tool, as described here

https://ttlc.intuit.com/community/taxes/discussion/state-tax-is-not-working-on-turbotax-deluxe-2019-...

You run the tool, select "Installation Problem", then find the TurboTax 2019 wcaiper, or it might have your state name instead of CA.  Then try download again.   If that doesn't work, you have to call turbotax 8004intuit, and ask them to add a manual state download to your account.  You could also try with the turbotax support facebook account -- this is a really common problem (there are dozens of such threads in the community forums with identical problem) so maybe facebook support people are now authorized to add a standalone download.   Otherwise, the phone support people can do it.  I suggest you enter your callback number, so they call you back rather than waiting on the phone.

Try this: 

 1)  right click TurboTax 2018 icon

2)  Select  Properties

3)  Select the  Compatibility tab

4) In the "Settings" box  check the box to "Run this program as an administrator"