On my Mac, why can't I format or partition the internal hard drive?

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On my Mac, why can't I format or partition the internal hard drive?

If you are unable to format or partition the internal hard drive in Mac OS X, the source of the problem is most commonly software-related; see In Mac OS X, why can't I unmount my drive to initialize it?

However, your hardware may have suffered physical damage and may no longer be functional. If this appears to be the case, consult a retailer or repair shop.

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Last modified on February 28, 2011.

On my Mac, why can't I format or partition the internal hard drive?

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On my Mac, why can't I format or partition the internal hard drive?

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