This HowToWiki teaches you how to unmount a hard drive that is connected to your computer. Unmounting a drive is the same thing as ejecting a drive. You cannot unmount your computer's main hard drive (e.g., the hard drive where your operating system is installed).


On Windows[edit]

  1. Open Start x30px. Click the Windows logo in the bottom-left corner of the screen, or press Win.
    Unmount a Drive Step 1 Version 5.jpg
  2. Click the File Explorer x30px. This icon is in the lower-left corner of the Start window.
    Unmount a Drive Step 2 Version 5.jpg
  3. Click My Computer or This PC. It's in the left-hand column of folders in the File Explorer window.
    Unmount a Drive Step 3 Version 5.jpg
  4. Click the drive you want to unmount. You'll find a list of all currently active drives below the "Devices and drives" heading in the middle of the page.
    Unmount a Drive Step 4 Version 5.jpg
    • This drive must be either a removable hard drive (e.g., a flash drive or SD card) or a secondary internal drive.
  5. Click the Manage tab. It's in the top-left side of the File Explorer window. This causes a toolbar to appear at the top of the window.
    Unmount a Drive Step 5 Version 3.jpg
  6. Click Eject. You'll find this option in the "Media" section of the toolbar. After clicking this button, you'll see the drive's icon disappear from the File Explorer window, and a notification letting you know that it's safe to remove the hard drive will appear.
    Unmount a Drive Step 6 Version 5.jpg
  7. Remove the drive from your computer. Gently disconnect the drive from your computer to complete the unmounting process.
    Unmount a Drive Step 7 Version 5.jpg

On Mac[edit]

  1. Open the Finder. This app, which resembles a blue and gray face, is usually found in the Dock at the bottom-left.
  2. Locate your drive's name. It will be on the left-hand side of the Finder window below the "Devices" heading.
    Unmount a Drive Step 9 Version 3.jpg
    • This must be a removable drive (e.g., a flash drive, external hard drive, or a virtual mounted drive).
  3. Click ▲. It's to the right of your drive's name. Doing so will "eject" the drive, which removes it from your Mac's available drives.
    Unmount a Drive Step 10 Version 3.jpg
  4. Remove the drive from your computer. Once the drive have been safely unmounted, you can remove the physical drive from your Mac computer.


  • On Windows, you can unmount a drive by clicking the USB icon in the bottom-right side of the screen and then clicking Eject.


  • Failing to unmount a drive before disconnecting it may result in data loss or corruption.

Related wikiHows[edit]