I had this situation recently. I believe I was at a step where TurboTax(TT) was trying to save my file and maybe go onto another step. I exited, then got the 70001 message when I tried to continue my taxes. I wish I had written the steps down, but hopefully I will communicate enough for some else to try the steps and confirm in better detail. But I believe I went into Task Manager and saw two processes that began with the text 'Intuit'. I highlighted each process and deleted. I believe one process may have referred to something like 'saving the file'. I then logged off, logged back in and did not get 70001 message again. As I mentioned before, one process might have had something to do with saving my return so I do not know if that step had completed and when you start TT again you get a file with all your most recent changes or will it start up with your return from the last time you saved it. I hope this helps, and my actions were better than just spinning my wheels. I will be interested if someone can confirm or could comment further,
