

Mac refuses to force eject drive due to the data protection mechanism. The drive is being occupied by a processing program.

Some apps or drivers are using the drive in the background. The external hard drive or files inside the drive is currently in use. So what caused this error? Here are the possible reasons that the Mac computer refuses to eject the drive: "The disk wasn't ejected because one or more programs may be using it." When you receive this message or a similar warning on a Mac computer while trying to eject an external hard drive, it means that you didn't or failed to eject the drive successfully: Error: Can't Eject External Hard Drive Mac - Causes & What-To-Do We'll discuss the reason that caused this error in the next part. However, some Mac users reported that they can't eject external hard drives on Mac even following the above three device ejection operations.

It doesn't matter when your external hard drive is not ejecting on Mac computers.

Double-click "Terminal" to launch the app. On Apple Menu, click "Go" > "Utilities" Step 2. Go to the Apple menu, and click "Shut Down" Step 2. Then click "Log In", sign in with your own. Click the Apple menu icon and click "Log Out" Step 2. Search Activity Monitor in the spotlight. Press the Command + Space key to open Spotlight Step 2. Stop Running Apps and Eject External Hard drive Launch EaseUS NTFS for Mac on Mac computer, click "I already have a license" to activate.
