Eject a disc properly to avoid corrupt files. There’s a simple rule about such devices: always eject them before you unplug.

The computer needs to do some filing and housekeeping on every drive. If you unplug without warning that housekeeping can be missed or go wrong and your files may be corrupted or damaged.

How to eject a drive When you do one of the following actions the computer carries out its housekeeping, but it doesn’t ‘spit out’ a hard drive in the way it does a CD or DVD. Wait a few moments before unplugging the drive from the computer. If the device has a display light it will flash a few times and then shine steadily. Wait until the light is steady before unplugging.

Eject a disc by clicking the Eject symbol (obscured below the yellow Tooltip). • Select the drive in the Sidebar of a Finder window and choose Eject from the File menu. • Select the drive in the Sidebar of a Finder window and click the Eject symbol (⏏) beside the name of the drive.

My problem is that whenever the computer wakes from sleep, I get a message popup that says Disks Not Ejected Properly. I have searched on the forums, and people have had this issue with older versions of ML but there solutions do not seem to have any effect here. Safely Removing a Drive to Avoid the “Disk Not Ejected Properly” Alert in Mac OS X Jun 13, 2014 - 27 Comments The Mac issues a warning when an attached disk, drive, or volume has not been ejected properly, this is to insure against data loss on the drive in question, and it is good advice to follow.

• Select the drive on the Desktop and drag it to the Trash. As you start to drag the Trash can icon will change to an Eject symbol (⏏).

• Select the drive on the Desktop. Right click or Control (⌃) click on it and choose Eject from the pop-up menu. Advanced users: use an Applescript like the following, replacing Elements with the name of your drive. 38 Comments • said: My problem is when I plug in my external hard drive which is powered by an outlet, and uses a usb cable keeps ejecting when doing a back up. So as I am starting the back up it starts then it ejects itself and says “The disk was not ejected properly bla bla bla. I cannot or have not been able to do a back up because of this error.

I have tried other external hard drives and it does the something. I also took off all sleep capabilities, no screen saver etc. What is your thoughts Lynn Heiser. • Dominic said: I’m not exactly sure if this is where I should be asking this question, but i have a problem with my Dynex memory card reader. When i first plugged it in it was fine, but then i unplugged it without clicking the eject button first.

Now everytime i plug it back into my mac it gives me the message: “The disk you inserted was not readable by this computer.” I’ve tried using multiple SD cards and it allways displays the same message. I haven’t tried using it on another computer yet though. Any idea on how to make it work again on my mac? • Ashley said: I have a number of WD portable hard drives. I’ve been using them for years on my PC. Last summer I got a MacBook Pro and went through the painstaking task of moving the files, reformatting each HD for Mac, and moving everything back. All was well until I upgraded to Lion OS.