How to Unmount a Drive

This wikiHow 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...

Method 1 of 3:

On Windows

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    Open the Start menu. Click the Start (
    Picture 2 of How to Unmount a Drive
    or
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    ) button in the lower-left corner of your screen.
    1. Alternatively, press the Win key.
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    Open File Explorer. Click the File Explorer
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    icon. Older Windows 10 versions will have the name shown next to the icon as pictured above.
    1. Windows 7 and Vista: select Computer from the right column.
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    Ensure you're on This PC, Computer, or My Computer. The option will be listed in the left pane.
    1. The names differ among Windows versions.
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    Click on the drive you wish to unmount. A list of all currently active drives will be available under the "Devices and drives" heading towards the middle of the page.
    1. This drive must be either a removable hard drive (e.g., a flash drive or SD card) or a secondary internal drive.
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    Click the Manage tab. It's in the ribbon at the top of the File Explorer window.
    1. In case your Windows version is missing the ribbon, simply right-click the drive instead.
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    Click the ⏏ Eject button.
    1. You'll find this option in the "Media" section of the ribbon.
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    Remove the drive from your computer. 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.
    1. Gently disconnect the drive from your computer to complete the unmounting process.
Method 2 of 3:

On a Mac

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    Open the Finder. This app, which resembles a blue and gray face, is usually found in the Dock at the bottom-left.
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    Locate your drive's name. It will be on the left-hand side of the Finder window below the "Devices" heading.
    1. This must be a removable drive (e.g., a flash drive, external hard drive, or a virtual mounted drive).
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    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.
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    Remove the drive from your computer. Once the drive has been safely unmounted, you can remove the physical drive from your Mac computer.
Method 3 of 3:

On GNU/Linux

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    Open a terminal and type 'df -h' to list all drives. Locate your drive, remember the path that it is Mounted on.
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    Unmount the drive by typing the command 'sudo umount' followed directory that it is mounted on. You must have superuser privileges to do this.
Update 05 March 2020
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