when I try to login, I get an error saying "You are unable to log in to the user account 'ACCOUNT_NAME' at this time. Logging in to the account failed because an error occurred". I suspect this occurred because I was trying to erase my Data partition, which contained my Home folder. However, I couldn't erase the Data partition because it couldn't unmount the volume. I thought restarting would help, but after restarting, I got this error message. BTW, this is a MBA, so I have no idea how to boot into a disc. I do not care for any of the data on the computer as I was about to do a complete reinstall. Any ideas? Thanks!