I want to restore my MacBook Pro 13" (late 2011) to factory settings as it's been running a little slow recently, to clear out all the rubbish, and so I can get what I consider to be the perfect backup clone. I'm also thinking about trying Yosemite but may revert back to Lion if it's too slow on 4GB RAM / upgrade my RAM. I have a Time Machine backup of the entire system in case things go wrong, but what I really need is individual files/folders/apps and I have Carbon Copy Cloner downloaded ready to do this. Is it quite a simple process of backing up individual apps or are there different folders for each app in the system Library, for example, that need to be copied over? I also have a few apps (e.g. Games, Office for Mac 2011, etc) that needed licences to install. Obviously I don't want to be buying them all again so what is the process of getting all of these apps on the new system with the same licence key? In some cases I also no longer have the licence keys. Is there a process for de-authentication like iTunes? Any advice or help greatly appreciated!