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%Begin Use Boot Camp Assistant to Partition Your Mac&#39;s Drive Menu Lifewire Tech for Humans Newsletter! Search Close GO Computers, Laptops & Tablets &gt; Apple <h1>
Use Boot Camp Assistant to Partition Your Mac&#39;s Drive</h1> 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.
%Begin Use Boot Camp Assistant to Partition Your Mac's Drive Menu Lifewire Tech for Humans Newsletter! Search Close GO Computers, Laptops & Tablets > Apple

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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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&#39;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.
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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You can also use Boot Camp Assistant 4.x to install Windows on your Mac if you're using Bo...
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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&#39;ll look at using an early version of Boot Camp Assistant to partition a Mac hard drive.
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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You can also use&nbsp;Boot Camp Assistant 4.x to install Windows on your Mac&nbsp;if you're using Boot Camp Assistant 4.x or later. <h2> You will need  </h2> An Intel-based Mac
OS X 10.5 or later
Available hard drive space (we&nbsp;recommend at least 20 GB) 01
of 05 
 <h2> First Things First  Back Up Your Data </h2> 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.
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 of 05

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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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.
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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Back up your data.&nbsp;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.
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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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
of 05 
 <h2> Getting Ready to Partition Your Drive </h2> Screenshot Boot Camp Assistant is automatically installed as part of OS X 10.5 or later.
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 of 05

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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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.
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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<h2> Launch Boot Camp Assistant </h2> Launch Boot Camp Assistant by double-clicking the Boot Camp Assistant application located at /Applications/Utilities/.Print a copy of the Installation &amp; Setup Guide by clicking the Print Installation &amp; Setup Guide button.Click the Continue button.Select the Create or remove a Windows partition option.Click the Continue button. 03
of 05 
 <h2> Select a Hard Drive to Partition </h2> 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.

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 of 05

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...
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Scarlett Brown 44 minutes ago

Select a Hard Drive to Partition for Windows

Click the icon for the hard drive that will ...
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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.
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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Audrey Mueller 50 minutes ago

Select a Hard Drive to Partition for Windows

Click the icon for the hard drive that will ...
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<h2> Select a Hard Drive to Partition for Windows </h2> 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
of 05 
 <h2> Determine the Size of Your Windows Partition </h2> Use the slider to divide the existing hard drive into two partitions, one for the existing OS X and one for Windows.

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 of 05

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...
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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&#39;t click any of the buttons yet.
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&#39;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&#39;ll also notice that you can&#39;t make the Windows partition smaller than 5 GB, although as we mentioned earlier, we don&#39;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.
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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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.
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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<h2> Set Your Partition Sizes </h2> 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.

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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Mia Anderson 6 minutes ago
05 of 05

Your New Partitions Are Ready

Once the partitioning is completed, you can eith...
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05
of 05 
 <h2> Your New Partitions Are Ready </h2> 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&nbsp;button, and follow the onscreen instructions to install Windows on the BOOTCAMP partition.
05 of 05

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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2022) How to Downgrade From Catalina to Mojave How to Make a Bootable Flash Installer of OS X or macOS How to Back up Your Mac to an External Hard Drive With Time Machine EaseUS Todo Backup Free 2022 Review Using Boot Camp Assistant to Install Windows on Your Mac How to Add, Delete, and Resize Your Mac Drive Without Erasing It First MiniTool Partition Wizard Free v12.6 Review How to Format a Hard Drive in Windows How to Clean Install Windows 8 or 8.1 [Walkthrough] How to Fix Error Code 0x80070057 How to Speed up Windows 7 With ReadyBoost How to Run EXE Files on a Mac Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Cookies Settings Accept All Cookies
2022) How to Downgrade From Catalina to Mojave How to Make a Bootable Flash Installer of OS X or macOS How to Back up Your Mac to an External Hard Drive With Time Machine EaseUS Todo Backup Free 2022 Review Using Boot Camp Assistant to Install Windows on Your Mac How to Add, Delete, and Resize Your Mac Drive Without Erasing It First MiniTool Partition Wizard Free v12.6 Review How to Format a Hard Drive in Windows How to Clean Install Windows 8 or 8.1 [Walkthrough] How to Fix Error Code 0x80070057 How to Speed up Windows 7 With ReadyBoost How to Run EXE Files on a Mac Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Cookies Settings Accept All Cookies
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