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Use Boot Camp Assistant to Partition Your Mac's Drive
By Tom Nelson Tom Nelson Writer Tom Nelson is an engineer, programmer, network manager, and computer network and systems designer who has written for Other World Computing,and others.
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Daniel Kumar Member
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Tom is also president of Coyote Moon, Inc., a Macintosh and Windows consulting firm. lifewire's editorial guidelines Updated on June 24, 2019 Tweet Share Email Asyraf Rasid / EyeEm / Getty Images Tweet Share Email Apple Macs iPad Boot Camp Assistant, part of Apple's Boot Camp, serves two functions in getting a Mac ready to run Windows. Its main purpose is to help you partition your hard drive, to create the necessary Windows partition.
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Evelyn Zhang 9 minutes ago
If you decide to delete Windows at some point in the future, Boot Camp Assistant can restore your Ma...
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Victoria Lopez 3 minutes ago
You can also use Boot Camp Assistant 4.x to install Windows on your Mac if you're using Bo...
If you decide to delete Windows at some point in the future, Boot Camp Assistant can restore your Mac to its pre-Windows configuration. In this guide, we'll look at using an early version of Boot Camp Assistant to partition a Mac hard drive.
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David Cohen Member
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You can also use Boot Camp Assistant 4.x to install Windows on your Mac if you're using Boot Camp Assistant 4.x or later.
You will need
An Intel-based Mac
OS X 10.5 or later
Available hard drive space (we recommend at least 20 GB) 01
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First Things First Back Up Your Data
Courtesy of Apple Fair warning: You're about to partition your Mac's hard drive. The process of partitioning a hard drive with Boot Camp Assistant is designed not to cause any data loss, but when computers are involved, all bets are off.
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Hannah Kim 1 minutes ago
The partitioning process alters the way data is stored on your drive. If something should unexpected...
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Chloe Santos 9 minutes ago
Back up your data. If you haven't already, try using Time Machine to back up your data. Time Ma...
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Thomas Anderson Member
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The partitioning process alters the way data is stored on your drive. If something should unexpectedly go wrong during the process (such as your dog tripping over the power cord and unplugging your Mac), you could lose data. In all seriousness, plan for the worst, and back up your data before doing anything else.
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Ella Rodriguez 2 minutes ago
Back up your data. If you haven't already, try using Time Machine to back up your data. Time Ma...
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Chloe Santos 5 minutes ago
You can also use the third-party backup software of your choice. The important thing is to back up y...
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Alexander Wang Member
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Back up your data. If you haven't already, try using Time Machine to back up your data. Time Machine is included with Mac OS X 10.5 and later, and it's very easy to use.
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Sophie Martin 21 minutes ago
You can also use the third-party backup software of your choice. The important thing is to back up y...
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Nathan Chen 3 minutes ago
If you have the beta version of Boot Camp Assistant, which was available for download from Apple's w...
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Victoria Lopez Member
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You can also use the third-party backup software of your choice. The important thing is to back up your data on a regular basis, including now; how you do it is up to you. 02
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Getting Ready to Partition Your Drive
Screenshot Boot Camp Assistant is automatically installed as part of OS X 10.5 or later.
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Emma Wilson Admin
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If you have the beta version of Boot Camp Assistant, which was available for download from Apple's website, you'll find that it no longer works, because the beta period has expired. You must be using OS X 10.5 or later in order for Boot Camp Assistant to function.
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Grace Liu Member
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Launch Boot Camp Assistant
Launch Boot Camp Assistant by double-clicking the Boot Camp Assistant application located at /Applications/Utilities/.Print a copy of the Installation & Setup Guide by clicking the Print Installation & Setup Guide button.Click the Continue button.Select the Create or remove a Windows partition option.Click the Continue button. 03
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Select a Hard Drive to Partition
Screenshot After you select the option to create or remove a Windows partition, Boot Camp Assistant will display a list of the hard drives installed in your computer.
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James Smith 15 minutes ago
For many individuals, this will be a short list, limited to the drive that came with the Mac. Whethe...
For many individuals, this will be a short list, limited to the drive that came with the Mac. Whether you have one hard drive or several, select a drive to partition.
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Select a Hard Drive to Partition for Windows
Click the icon for the hard drive that will ...
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Emma Wilson Admin
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Select a Hard Drive to Partition for Windows
Click the icon for the hard drive that will be the new home for Windows.Select the Create a second partition for Windows option.Click the Continue button. 04
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Determine the Size of Your Windows Partition
Use the slider to divide the existing hard drive into two partitions, one for the existing OS X and one for Windows.
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Thomas Anderson 17 minutes ago
Screenshot The hard drive you selected in the previous step will display in Boot Camp Assistant, wit...
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Sofia Garcia 22 minutes ago
As you drag the nub, you'll notice that you can only shrink the Mac OS X partition by the amount...
Screenshot The hard drive you selected in the previous step will display in Boot Camp Assistant, with one section labeled Mac OS X and the other labeled Windows. Use your mouse to click and drag the nub between the sections, to expand or shrink each partition, but don't click any of the buttons yet.
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Chloe Santos 3 minutes ago
As you drag the nub, you'll notice that you can only shrink the Mac OS X partition by the amount...
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Isaac Schmidt 1 minutes ago
You can click the 'Divide Equally' button, which, as you might have guessed, will split your drive i...
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As you drag the nub, you'll notice that you can only shrink the Mac OS X partition by the amount of free space that is available on the selected drive. You'll also notice that you can't make the Windows partition smaller than 5 GB, although as we mentioned earlier, we don't recommend making it smaller than 20 GB. You may also notice that there are two predefined sizes to choose from, via the two buttons located just below the display of the partitions.
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William Brown 10 minutes ago
You can click the 'Divide Equally' button, which, as you might have guessed, will split your drive i...
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Dylan Patel Member
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You can click the 'Divide Equally' button, which, as you might have guessed, will split your drive in half, using half of the available space for Mac OS X and half of the available space for Windows. This, of course, assumes that there's enough available free space on the drive to split things equitably. Alternatively, you can click the '32 GB' button, which is a good general-purpose choice for a Windows partition, again assuming you have enough free hard drive space to create a partition this size.
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David Cohen Member
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Set Your Partition Sizes
Adjust your partition sizes Use the nub to select a custom sizeUse the buttons to select the pre-defined sizesClick the Partition button when ready. Partitioning a drive usually takes some time, so be patient.
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05
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Your New Partitions Are Ready
Once the partitioning is completed, you can eith...
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05
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Your New Partitions Are Ready
Once the partitioning is completed, you can either quit or start the Windows installation process. Screenshot When Boot Camp Assistant finishes partitioning your hard drive, the Mac partition will have the same name as the original unpartitioned hard drive; the Windows partition will be called BOOTCAMP. At this point, you can quit Boot Camp Assistant or click the Start Installation button, and follow the onscreen instructions to install Windows on the BOOTCAMP partition.
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Use Boot Camp Assistant to Partition Your Mac's Drive Menu Lifewire Tech for Humans Newsletter! ...
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Tom is also president of Coyote Moon, Inc., a Macintosh and Windows consulting firm. lifewire's edit...