Disk not ejected properly

Question

Disk not ejected properly

I'm running Mac OS X Mavericks 10.9.5. on my 21" iMac. One of my external hard disks, 1Tb "My Passport" by WD, is not recognized and I am getting every now and then the message "Disk not ejected properly" without doing nothing. I have tried different actions, including reinstalling Mavericks, but nothing works. However, it was recognized before, but I can't if it was after upgrading or before from Mountain Lion.

Message was edited by: Javier Antroxu

MacBook Pro, Mac OS X (10.6.8), null

Posted on May 1, 2015 5:06 PM

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Answer 1

May 1, 2015 6:26 PM in response to Javier Antroxu

Many users lost data on their WD drives when updating to Mavericks. Eventually WD came out with updated drivers.

WD Drive Manager needs to be updated on Mac OSX 10.9.X (Mavericks)

More info: https://discussions.apple.com/thread/6465575

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Answer 2

Eric Root

Level 10

684,045 points

May 2, 2015 9:33 AM in response to Javier Antroxu

Can you see the drive in Disk Utility?

See mount section in 1st linked article.

Disk Unmount Using Terminal

Disk Utility – Force Mount Disk

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Answer 3

May 2, 2015 3:56 PM in response to dianeoforegon

When I connect the external hard drive "My Passport WD" to my computer, it appears and is recognized for a few minutes (2-3), both on Disk Utility and on the computer desktop; afterwards, it vanishes and I get the message "Disk not ejected properly", without having done anything. Same thing happens when I connect the same hard drive to other computers, one running under Mac OS X Yosemite, and the other one under Windows XP. When I try to update the drive, the hard drive vanishes before I can complete the action.

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Answer 4

May 2, 2015 4:41 PM in response to Javier Antroxu

It sounds like the drive might be dying. If you can't mount it, you can't repair. It's possible the WD software might be able to repair. Did you try downloading the software from WD above?

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