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Level 1

11 points

"Disk Not Ejected Properly" error after EL Capitan goes to sleep and wakes up again.

Hi, community.

On public launch day, I upgraded my Macs (Mid 2010 MacBook Pro 15", Mid 2012 MacBook Peo 15", Late 2011 MacBook Air and a Mid 2010 Mac Pro) to OS X El Capitan. In general terms, the upgrade process went smooth.

But, I've been presenting an annoying problem:

Each time any of my computers go to sleep, if they have an external hard drive connected to an external USB Hub (unpowered), they present a "Disk Not Ejected Properly" error after they wake up again.

I didn't have any of these issues with Lion, Mountain Lion, Mavericks nor Yosemite! Only now, when I upgraded to El Capitan, things are getting annoying.

Does any one else present the same issues and, do you have a solution to this problem.

Thanks for reading.

MacBook Pro, OS X El Capitan (10.11)

Posted on Oct 2, 2015 9:38 PM

213 replies

micdim

Level 2

191 points

Jan 22, 2017 12:08 PM in response to myaka

ANything for MacPro early 2008, version 3,1?

myaka

Level 4

2,777 points

Feb 10, 2017 6:20 AM in response to myaka

Has 10.12.3 brought sudden ejections back for anyone else?

They've returned with a vengeance on my early 2009 Mac Pro with USB 3.0 PCIe card.

Mar 14, 2017 8:27 AM in response to goye

I had this problem too with my SD Card ... Tried SMC reset but didn't work for me ... I formatted the SD Card to Mac OS Extended (Journaled) then it got remounted everytime it wakes up

"Disk Not Ejected Properly" error after EL Capitan goes to sleep and wakes up again.