So I am new to the Mac world as I have stated so many times b4 in previous threads. I have been on the help pages of my MacBook reading and reading. I have been all over these forums reading up on information about Apple, Mac and Macbooks. My question is, I am bored and I would like to learn more about the Mac and the inner workings of how things are run and how things are done. I was thinking of reformatting my macbook just for fun. I am a person that has to know everything about anything...and as a windows user for the last 10 yrs or so I know nothing about Apple or Mac or Tiger etc etc. Any opinions would be great. From what I can see in the readings its just as simple as putting in the OS X disc restarting and then running through the steps as they come. But what I dont fully understand is the Disc Utility and how or why you would want to erase the drive from there and or what the Erase free space is all about. I read somewhere and it said that you add zero's or something all the way up to 35 would anyone be able to explain this a little more in depth for me...is this in any way shape or form got anything to do with a reformat of my HD or would this be something that I would do say after or before I have reformatted my HD...? Any help or suggestions would be greatly appreciated. Thank you!!