Hi so I don't have the original boot discs for my macbook, but I want to securely erase my data before I sell it. I was thinking I could set up a new administrator account, erase my old account, and then do a 7-wipe pass. Would this adequately erase my data. Or do I need to do a clean install? Thanks for any replies. Sorry if this is covered somewhere else I am in a rush and posting this from my phone.