Your machine gets so cross with you when you don’t safely remove a USB or hard drive, but is it really necessary?


The reasoning behind it

In general, the answer is yes, but why?

Most Windows and Apple operating systems perform write caching. What this means is that your machine, in simple terms, waits to perform certain actions and then performs all these actions at once. If you don’t let the machine know that you are about to eject a disk it won’t perform all these pending actions and the data could become corrupt.

Regardless of write caching, if the drive is in use you should always safely eject disk to prevent data corruption.

Tip: Most USBs and hard drives have a little light which will be an indication of whether it is in use.

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How to Safely Eject Disc on a Mac

  • There is the obvious Safely Eject disc icon. You can locate this icon in your Finder Menu next to the drive you wish to eject;

Mac Eject Icon

  • You can drag the disk you wish to eject into the Trash to safely eject it; or


  • Select the disk in your Finder Menu, then press Command + E on your keyboard to safely eject the disk.

How to Safely Eject Disc on Windows

If you see the Safely Remove Disk icon in your Task Bar, click on it to open a pop-up menu, click the device and a display message will appear informing you that you can safely eject disk.

Safely Eject Disk Microsoft