I have Desktop 7, and followed the directions for getting the 1-Time purchase upgrade to 11. I paid the $49.99, got the license code, and installed the software. When I put in code for 11, it asked for the previous code. I put in the Activation code I have for Desktop 7 and it says it's invalid. I followed your workflow, and yet I'm denied from the upgrade. I need this resolved as this is a work computer.