All!? How about the only ones I need?(Which I think is pretty much nothing)
back up all data now now
imagine your pc is gone completelywhat will you miss?what do you need that you dont have now?these are the kinds of things you need to back up
[EDIT]: Is it safe to transfer files to my second hard drive?
Would there different methods, I wouldn't really want to do that.Although, the hard drive is kind of old...Probably reused too, making it older