Please explain how you do that? I just tried, using the same login and activation code that my mother bought and used on her PC and I get the error that "All available activations for that code have been used. Error code:603" and it won't let me install the Desktop version that we bought at Costco because it says it's good for 8 returns, onto two PCs? Only being able to install the software on one PC is useless when everyone uses their computers daily and we don't really want to have access to each other's financial data.
