Hi, so I ran disk utility and checked my hard drive: Machintosh HD. It said I have file to much, and a volumedirectory to less. I also said I have to repair my volume: Machintosh HD. So, how do I do this, and what will I lose. I said something about an instal disk (which I have), but that leads my to believe it will reset my whole macbook and I will lose my apps and data. (I don't want to instal office 2011 again with those instal codes that never work) Will I lose my data and how does the repairing with the instal disk work? Thanks!