I installed TT 2019 on my Windows 7 PC in Nov.
In December , I bought a custom built Windows 10 PC and installed TT 2019. I had issues with the way Windows 10 was configured so I formatted the drive and started over (twice). Then TurboTax gave an error saying I exceeded the number of installs. I called support and they gave me a link to download and a new license key.
Very helpful in that matter.
I also installed the new copy on my old Win7 computer but never tried to open the State return until the problem appeared on new Win10 PC and customer support could not resolve it (around (Jan 31).
Then I decided to try the State on the Win7 PC and it worked. I searched the forum and found this thread.
