I want to know if I backup with Time Machine if it saves all my data. My mac has had some problems and I am going to replace it today, if not get it fixed. If I have to replace it, how would I back EVERYTHING up so I can just restore it to what it looks like now, like all the apps and what it has on it? Do I just use Time Machine when I get my new one and use my external and then it works? Or do I gotta do it some otherway? Thanks for your help.