I have 2 computers with Turbotax installed and they both get error 1603. I have tried ALL of the suggestions and none fixed this update error.. The only fix was the manual update. When doing the manual update it acts as a new install on a different computer and adds an extra computer to my account. The account now has the same computer listed twice. How can I remove the extra computer from my account?
I wish you would fix the error 1603 problem.