How do I fix error code 209?

See https://ttlc.intuit.com/community/taxes/discussion/how-can-i-resolve-error-209/00/1887027

Do you realize that after three years users are still getting this error which shuts down Turbo tax before it even gets started?  I chose the option to install on a larger SSD but now I am told to resolve error 209 I need to uninstall and reinstall on my OS Drive which has very limited space?  Is this the best solution after three years?   How about an urgent release to fix a pointer to the correct installed drive?    Very disappointing that I cannot use the product in 2024 after using it for some 20 years. 

Here it is a year later 1/17/25 and I just got the same error trying to load my new Turbo Tax Deluxe program.

I can't load the program without a crash and we are supposed to rely on their tax program for our 1040's??

Refer to this TurboTax Help article: Troubleshoot TurboTax for Windows downloading issues

I had received this error message when trying to boot TT Premier after downloading to an external hard drive.  I uninstalled TT on that drive, and reinstalled it on the Hard drive on the PC.  It worked.