Could be the drive - the industry nickname for that model is "Deathstar" because they are so problematic. The Disk Utility is a pretty lightweight tool - try a reformat (partition) before reinstall - on that age machine it could be your optical drive or even damage to the install disk.
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''If you have another drive you could try to install your OS on that, boot from it and clone (or apple restore) it back to the internal drive.''
''If this Answer is helpful '''please remember to return and mark it '''Accepted.''
Could be the drive - the industry nickname for that model is "Deathstar" because they are so problematic. The Disk Utility is a pretty lightweight tool - try a reformat (partition) before reinstall - on that age machine it could be your optical drive or even damage to the install disk.
''If this Answer is helpful '''please remember to return and mark it '''Accepted.''