I struggled with this problem for a week before I I stumbled on a work-around. Click on the File Explorer icon on the bottom of your Windows screen. In the search field in the upper right, type Turbotax. With luck, that search will show the Turbotax icon on the top of the responses. When I click on that, I'm in Turbotax with my file open. (Getting into Turbotax this way didn't fix the original problem. This work-around is still the only way I can get into Turbotax.)
