Hello guys this is me again, yep with my new macbook pro and asking a lot of questions ! I came from an windows background which the first thing i ever did with a new laptop was to partition my hard drive so i can keep my data safe when installing a new windows latter on, and also just to keep them away from the windows files and for them to be private and secure and all that stuff. I'm wondring if its the same deal with a mac ? do you guys normally partition it ? and is installing a new OS on a mac a pain like windows and could risk losing my data ? also I'm not a back up guy so i won't be doing any back up before upgrading my OS, i just don't like having copies of my private data ! also it takes a lot of time.. so tell me more about your experience regarding this. thanks everyone !