I have the same problem with this purchased Turbotax 2019 software, always failed with .NET 4.5.2 error message during the installation process (Never had problems with the previous Turbotax versions), had to file extension manually. None of the Recommended solutions from Turbo tax website to fix this problem works, also tried all the Microsoft software suggestions not working neither. Waste huge amount of my time and efforts to try to make it work, STILL nothing works (always failed with .NET 4.5.2 error message during the installation process )
