I've been putting this off for a while, but now I'm lost on how to go about reseting this password. I chose my master password about a year ago and barely used it since, now I want to change it but can't remember what it was even. Apple.com's support said putting in OS X installiation disc, holding C and going straight to a menu that would enable me to do that, when I attemped to do this, OS X was trying to do a complete reinstallation of itself (which would erase all my files) which I obviously did not want. Is there anyway to just reset the password? I know all of my account passwords but nothing about the master one. Any help would be great.