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You can try all processes below, except it may be wise to reopen device and check all connections as if you were prompted with same error message could be the cable it self and not the drive as i replace many Mac and high possibility it is the hard drive or reseating the cable. Hi Curt, just to clarify since it is possibly a 2009 make it will not have internet recovery, so performing an time machine would be ideal if you have it.
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Any thoughts on why this password issue happened? Any way to do a Time Restore without that happening? Maybe I'll be able to selectively restore some files from Time Machine, but if I try to do a full restore I won't be able to sign on or use my computer at all. Then I should be able to update OS-X from the internet, and essentially start over. This will enable me to create a new user and password as if it were a new computer. I am guessing I will have to start over, reinstall from my Installation disk, but not restore from Time Machine. Bad news though, after the Time Machine restore my computer won't accept my startup password, so I can't start it up! I guess that may be due to a mismatch between the OS-X version on my Installation disk (from 2009), and the version which I was using when the Time Machine backups were made. I got it restarted and then did a Restore from my Time Machine back up. So I was able to get it started up with my Mac OS-X installation disk.
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