Hi
I'm selling my old iMac (2 months old) which I used for work so I want to do a 7 pass zero delete.
I've created a boot disk on usb stick and can boot up from it using either cmd+r or option but when i try to erase the HD i get the warning
"Secure Disk Erase Failed"
"Couldn't unmount disk"
I've looked every where and can't see where im going wrong even apple care isnt open on a sunday.
Thanks in advance for any help
*Dont worry I fixed the problem*
I'm selling my old iMac (2 months old) which I used for work so I want to do a 7 pass zero delete.
I've created a boot disk on usb stick and can boot up from it using either cmd+r or option but when i try to erase the HD i get the warning
"Secure Disk Erase Failed"
"Couldn't unmount disk"
I've looked every where and can't see where im going wrong even apple care isnt open on a sunday.
Thanks in advance for any help
*Dont worry I fixed the problem*
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