How to Transfer Data Between Two Hard Drives

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A simple guide to copying files from one drive to another on a PC or Mac
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What are the fastest ways to transfer data between hard drives?

  • If you have an internal hard drive that you can't install in the PC, use an IDE-to-USB or SATA-to-USB adapter or external hard drive enclosure.
  • On Windows, you'll find all connected drives under "This PC" in File Explorer. You can copy and paste files between any two drives.
  • On a Mac, both drives will appear in Finder. You can drag files or copy and paste across all connected drives.
Method 1
Method 1 of 2:

Windows

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  1. There are two main types of hard drive that you might want to add data to or remove data from:
    • External hard drive - External hard drives are USB-connected drives. You shouldn't need to set up or find an adapter for your external hard drive if you're using it on Windows, though you will need to format it for exFAT if you're using it on a Windows computer after previously using it on a Mac.
    • Internal hard drive - Internal hard drives are built to connect directly to your computer's motherboard. You will need to remove the hard drive from its computer, determine whether it is IDE (indicated by a several-inch-wide ribbon connector) or SATA (indicated by a narrow ribbon connector), and find an IDE- or SATA-to-USB adapter.
  2. Connect the drive's USB cable to your computer. If you're connecting an internal hard drive, you'll need to connect the adapter to your computer and then attach the IDE or SATA cable to the adapter's appropriate slot.
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  3. Click the Windows logo in the bottom-left corner of the screen.
  4. Click the folder-shaped icon in the lower-left side of the Start window.
  5. On the left side of the File Explorer window, click a folder that contains files which you want to move onto the hard drive.
    • If you want to move files from the hard drive onto your computer, skip ahead to the "Click This PC " step.
  6. Click and drag your mouse across the files, or hold down Ctrl while clicking individual files to select them independently.
    • You can also click one file and then press Ctrl + A to select every file in the folder.
  7. Press Ctrl + C to do so.
  8. It's an item on the left side of the File Explorer window.
  9. Double-click the hard drive's name below the "Devices and drives" heading.
    • The hard drive will usually be on the right side of the This PC window.
    • Don't double-click the (C:) drive, as this is your computer's internal hard drive.
  10. Click a blank space in the hard drive's window, then press Ctrl + V . The files will begin copying onto the hard drive.
    • If you're moving files from the hard drive onto your computer, do the following instead: select the files that you want to move, copy them by pressing Ctrl + C , find the folder on your computer in which you want to store the files, and press Ctrl + V .
  11. To do so:
    • Click This PC on the left side of the window.
    • Click your hard drive's name beneath the "Devices and drives" heading.
    • Click the Manage tab.
    • Click Eject at the top of the window.
    • Remove the drive from the computer.
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Method 2
Method 2 of 2:

macOS

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  1. There are two main types of hard drive that you might want to add data to or remove data from:
    • External hard drive - External hard drives are USB-connected drives. If you're attempting to connect a brand-new external hard drive to a Mac, you may need to format it for your Mac's file system, which is usually Mac OS Extended (Journaled) , before you can use it on your Mac. You may also need a USB 3 to USB-C adapter if your Mac only has USB-C slots.
    • Internal hard drive - Internal hard drives are built to connect directly to your computer's motherboard. You will need to remove the hard drive from its computer, determine whether it is IDE (indicated by a several-inch-wide ribbon connector) or SATA (indicated by a narrow ribbon connector), and find an IDE- or SATA-to-USB adapter.
  2. Connect the drive's USB cable to your computer. If you're connecting an internal hard drive, you'll need to connect the adapter to your computer and then attach the IDE or SATA cable to the adapter's appropriate slot.
    • If your Mac doesn't have traditional USB slots, you'll need to find a USB 3 to USB-C adapter as well.
  3. Click the blue, face-like app in your Mac's Dock.
  4. On the left side of the Finder window, click a folder that contains the files that you want to move onto the attached hard drive.
    • If you want to move files from the hard drive onto your computer, skip ahead to the "Click the attached hard drive's name" step.
  5. Click and drag your mouse across the files, or hold down ⌘ Command while clicking individual files to select them independently.
    • You can also click one file and then press ⌘ Command + A to select every file in the folder.
  6. Press ⌘ Command + C to do so.
  7. It's in the lower-left side of the Finder window. Doing so will open the hard drive's window.
  8. Click the hard drive's window, then press ⌘ Command + V . The files will begin copying onto the hard drive.
    • If you're moving files from the hard drive onto your computer, do the following instead: select the hard drive files that you want to move, copy them by pressing ⌘ Command + C , find the folder on your computer in which you want to store the files, and press ⌘ Command + V .
  9. Click the "Eject" triangle-shaped icon to the right of the attached hard drive's name in the Finder window, then unplug the hard drive from your Mac when prompted.
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  • Question
    How do I recover data if my hard disk is formatted?
    Community Answer
    There are many recovery software packages available for free download, such as Pandora recovery software. They can be used to recover deleted data from hard drives, but complete recovery is not guaranteed.
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  • Question
    How do I transfer one Playstation 4 hard drive to another hard drive?
    Community Answer
    You can use a USB enclosure and hook it up to your PS4. Then, you can do the same with the new HD and simply transfer the data.
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  • Question
    How can I copy data from internal data hard disk to new internal data hard disk?
    Community Answer
    The question does not have enough detail for a proper answer. To answer it, we would need to know what operating system you are using, Windows, Linux, Unix, Apple, Etc? Is the internal data drive really just a data drive or is it also the drive with the OS on it? Do you just want to copy the data from one drive to another or are you wanting to clone the original drive so the new drive is a complete bootable copy of the old drive? All these variables require different methods.
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      • Formatting a drive will remove all files on it, which is useful if you want to wipe clean a hard drive before using it elsewhere.
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