Rooting without wiping data
I have read on the internet that Samsung Galaxy S3 can be rooted without wiping the data i.e. without tripping the knox. This thread gave me a heads up on the basics
I still have few other questions, I am sorry if these are some silly questions but I don't have much knowledge about the rooting process. I have finally decided to root as I am fed up of Google's crap updates like Play magazine, hangouts etc etc and the fact that Samsung has forgotten its old customers is an icing on the cake. Anyways the questions are-
1. The main question can you please tell me the step by step procedure to root without loosing the data, i.e. without tripping Knox? And what does it mean actually?
2. In the thread mentioned above, it is written that there will be no more over the air(OTA) official updates. So, lets say Samsung releases a Kitkat update for S3(which isn't happening) then the one which I will get will be from the developers and not from Samsung right?
3. What exactly are toolkits?
4. How much time will rooting take?