Install Windows 10 on your Mac with Boot Camp Assistant

Boot Camp Assistant helps you install Microsoft Windows 10 on your Mac. After you install, you can restart your Mac to switch between macOS and Windows.

Boot Camp Assistant on MacBook Pro

Before you begin

First, make sure that your Mac supports Windows 10. Use About This Mac to find out which Mac you have, then see if it's on this list:

  • MacBook Pro introduced in 2012 or later
  • MacBook Air introduced in 2012 or later
  • MacBook introduced in 2015 or later
  • iMac Pro
  • iMac introduced in 2012 or later1
  • Mac mini introduced in 2012 or later
  • Mac Pro introduced in late 2013

Next, make sure that you have what you need:

  • The latest version of macOS. Learn how to update the software on your Mac.
  • A minimum of 64GB of free disk space on your Mac to create a Boot Camp partition. Automatic Windows updates require at least 128GB, so Apple recommends a partition of 128GB or larger for the best experience.
  • A blank 16GB or larger USB 2 flash drive. Some Mac models don't require that you install from an external flash drive.

Finally, get a disk image (ISO) or installation media containing a 64-bit version of Microsoft Windows 10 Home or Pro edition:

  • If you're installing Windows on your Mac for the first time, use a full version, not an upgrade.
  • If your copy of Windows came on a DVD, you might need to create a disk image
  • If your copy of Windows came on a USB flash drive, or you have a Windows product key and no installation disc, you can download an ISO from Microsoft.

Install Windows

Now you're ready to install Windows on your Mac with these steps:

1. Open Boot Camp Assistant and create a BOOTCAMP partition

Open Boot Camp Assistant from the Utilities folder inside the Applications folder, then follow the onscreen instructions. The app will help you create a BOOTCAMP partition on your startup disk, and download related software drivers for Windows. 

You can't resize the BOOTCAMP partition after it's created, so make sure to specify a partition size that will meet your needs. Apple recommends a minimum of 128GB for the best experience.

If you're prompted during installation, connect a blank USB 2 flash drive.

2. Format your BOOTCAMP partition

When Boot Camp assistant finishes, your Mac restarts to the Windows installer. In most cases, the installer selects and formats the correct partition automatically. If you're using a flash drive or optical drive to install Windows, the installer might ask where you want to install Windows. Select the BOOTCAMP partition, then click Format.

3. Install Windows and Windows Support Software

Unplug any external devices, such as displays and disks, that aren't necessary during installation. Then follow the onscreen prompts to install Windows. After installation finishes, your Mac starts up in Windows and opens an installer for Windows Support Software.

If a screen that says "Welcome to the Boot Camp installer" doesn't appear automatically, you need to install Windows Support Software manually.

How to switch between macOS and Windows

  1. Restart your Mac, then immediately press and hold the Option key.
  2. Release the Option key when you see the Startup Manager window.
  3. Select your macOS or Windows startup disk, then click the arrow or press Return. 

Repeat these steps any time you need to switch between operating systems.

Learn more

You don't need a USB flash drive to install Windows if you have one of these Mac models running OS X El Capitan 10.11 or later:

  • MacBook Pro introduced in 2015 or later2
  • MacBook Air introduced in 2015 or later2
  • MacBook introduced in 2015 or later
  • iMac introduced in 2015 or later
  • iMac Pro
  • Mac Pro introduced in late 2013

For more information about using Windows on your Mac, click the Open Boot Camp Help button in Boot Camp Assistant.

1. Learn more about installing Windows and macOS Mojave on iMac (27-inch, Late 2012), iMac (27-inch, Late 2013), or iMac (Retina 5K, 27-inch, Late 2014) configured with 3TB hard drives.

2. These Mac models were offered with 128GB hard drives as an option. Apple recommends hard drives of 256GB or more so that you can create a Boot Camp partition of at least 128GB.

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