THIS FINALLY WORKED!
I had to reinstall at the lower resolution using Microsoft Edge as my default browser (Instead of Chrome which I prefer) then just hovered the test cursor over the box for the code and carefully and blindly typed it in...INCLUDING THE DASHES, then clicked the activate button. Nothing acts like its responding, but it worked.
What a ridiculous process.
After 8 years, I will be looking for a different tax software for next year.
