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Question: External HD fails to open

Hard drive is a Western Digital, 1 TB, connected to iMac 10.13.3 (High Sierra). It shows up on disk utility as Unmounted. If I try to Erase, Partition or perform any operation, it comes back with a "Failed to open" message.

iMac (27-inch, Late 2013), OS X El Capitan (10.11)

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Mar 15, 2018 12:56 PM in response to Terradog In response to Terradog

In Disk Utility did you try to Mount it? It's a button in the Disk Utility toolbar. If you select the volume (indented entry) then click Mount the disk will mount on the Desktop unless there is some other issue with the drive.

Mar 15, 2018 12:56 PM

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Question: External HD fails to open