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disk not writeable

  1. gabrieljones10

    External HD Suddenly not writeable

    Hi, Just to be clear, I'm not super savvy with this stuff...so be gentle. I'm on a mid 2015 MBP running Sierra 10.12.3. I just purchased and plugged in a USB hub (Sabrent 4-Part USB 3.0 Hub -- here's the Amazon link...
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