I have been looking at sites to try and figure out how imaging works. I understand that it takes a copy of your drive so if something went wrong, it would restore it back to its original state. But my question is how does it work? Lets say I have one 40GB drive that holds my OS and a second 500GB drive for data. Does it copy both drives? If one drive dies and I replace it, will all the data be recovered or is imaging more for registry and spyware problems?