6 Replies Latest reply: Dec 30, 2012 4:23 AM by wilsondhms
jfig08 Level 1 Level 1 (0 points)

I am trying to reinstall Lion on my macbook pro, but every time the hdd shows up as 'locked' and when I attempt to format it, it gives me a "volume erase failed with the error - cannot unmount disk" message. It appears as if some files withing the disk are still running but I have no way of quitting them-knowingly. Can anyone help? I can specify more if this seems to vague.

MacBook Pro