Just purchased a 1 TB back up hard drive for my MacBook Alum that I have to send back because it has a dent from shipping... I have it backed up using Time Machine now. But before I send this computer off, how can i make SURE that everything is on there? I enter Time Machine and it's all there. Any other way to check? Also, does this also back up all my setting and software? Sorry if these are stupid questions, but I've never backed up a computer before.