Okay, so I actually know how Time Machine works and all. I have my backup all ready. There was a problem with my 2011 13" MBP so I need to get a replacement. My only question is will all my apps and everything be downloaded to my new computer and work off the backup? (MS Office, iStat menus, Parallels, Things, Spotify... etc) I know some of these apps have serial numbers that allow them to only work on one computer. Should I wipe the computer before I trade in for the replacement?