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<blockquote data-quote="Rod" data-source="post: 1875133" data-attributes="member: 204485">This is the MacBook Pro (17-inch, Early 2009) so it's getting pretty long in the tooth but your best option would be a bootable installer.&nbsp; A USB thumb drive with the ability to run your device while you access Disk Utility to diagnose any problems, erase whatever is on the device and instal a fresh copy of an operating system.&nbsp; While you can create your own portable, bootable installer it's standard equipement for most Apple repair shops.&nbsp; I have a few of my own for emergencies.At the very least such a device is a quick diagnostic tool which will determine if the device is workable and if the internal drive is worth saving or hopelessly corrupted.If you decide to make your own I suggest you avoid El Capitan and download the previous OS, Yosemite (OSX 10.10).&nbsp; You can always upgrade from there if you wish.Older versions are available here; <a href="https://support.apple.com/en-us/HT211683" target="_blank">https://support.apple.com/en-us/HT211683</a>You then need to create a bootable installer as mentioned above.&nbsp; The easiest app I know of for that is Instal Disk Creator, available free from here <a href="https://macdaddy.io/install-disk-creator/" target="_blank">https://macdaddy.io/install-disk-creator/</a></blockquote>

[QUOTE="Rod, post: 1875133, member: 204485"] This is the [B]MacBook Pro (17-inch, Early 2009) so it's getting pretty long in the tooth but your best option would be a bootable installer. A USB thumb drive with the ability to run your device while you access Disk Utility to diagnose any problems, erase whatever is on the device and instal a fresh copy of an operating system. While you can create your own portable, bootable installer it's standard equipement for most Apple repair shops. I have a few of my own for emergencies. At the very least such a device is a quick diagnostic tool which will determine if the device is workable and if the internal drive is worth saving or hopelessly corrupted. If you decide to make your own I suggest you avoid El Capitan and download the previous OS, Yosemite (OSX 10.10). You can always upgrade from there if you wish. Older versions are available here; [URL]https://support.apple.com/en-us/HT211683[/URL] You then need to create a bootable installer as mentioned above. The easiest app I know of for that is Instal Disk Creator, available free from here [URL]https://macdaddy.io/install-disk-creator/[/URL][/B] [/QUOTE]

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