I have owned the Helix Floor since the day it was released and have updated it with every single update published by Line6. I have not had a single problem ever. I have used both PC and Mac for updating and they both work fine. But i have always made sure that the PC config is "clean" and without any weird drivers, programs, configs and so on. It's absolutely impossible for any vendor to cater for all kind of configs on users PC:s so to spare yourself issues create a secondary Boot sector on your machine and use that as clean as possible when you are updating.