Partition Hard Drive For Mac


1 Rules of Resizing Partition for Mac. If you want to resize a partition for your Mac without erasing data, there are some rules you need to follow. Ensure you pay attention to these rules for maximum results. The last partition on a drive cannot be increased. However, it can be deleted. Open Disk Management, the tool included in all versions of Windows that lets you partition drives. How to Partition a Hard Drive or SSD on Mac (With Boot Camp) You can also partition your Mac or SSD with Boot Camp if you want to run a Windows OS on the device. Boot camp has a handy app called Boot Camp Assistant for partitioning hard drive space so each partition created will. Partitioning Your Hard Drive on Mac. Now that you have prepared your hard drive to work with Mac, the next step is to partition it on your Mac by following these steps: Launch the Disk Utility app on your Mac and highlight the hard drive icon under ‘External’ (for external hard drives). If you choose any other drive, the partition option.

Sep 25, 2020 • Filed to: Solve Mac Problems • Proven solutions

Partition Hard Drive For Mac

Partitioning the hard drive on your Mac computer will make it possible for you to run multiple operating systems independently without interfering with the smooth operation of the default partition that came with the device. Here is a quick tutorial on how to get it done on your own with Apple's disk utility program.

Overview of Disk Partition

What we mean by partitioning your Mac hard drive is simply to split it into different systems so as to enable two or more operating systems to run concurrently on your device. For example, you can install and a Mac and Windows OS on the device or two Mac OS versions on the same device. You can also create a partition to back up important files or to organize similar files into separate folders. There is quite a lot you can do with new partition creations but let's stick to Mac hard drives since that is what this article is for.

Benefits of making a Partition in a Mac Hard Drive

Like I noted already, a partition makes it technologically possible to run two different versions of MAC OS on your device or a Windows OS on a Mac device. Without a separate partition, running a Windows OS will not be possible since Windows is entirely different software. If you know how to go about initiating a partition, you will have no trouble implementing two different OS on the same device, and in this tutorial, we will show you how it is done.

Things to note before you start

Before you start the process, it is important that you back up the data in your hard drive in case of system errors which may lead to data loss. The easiest way to back up your data is through the use of a backup application. You can also store the backed up data in a separate system if you have another device available for use.

Finally, make sure there is enough space in your hard disk for the other operating system you intend to Install. A disk space of 30GB- 50GB should be enough to complete the process.

How to partition an External Hard Drive on Mac

After you must have backed up vital files and ensured that there is sufficient space in your hard disk, follow these simple steps to partition an external drive on your Mac computer.

1st Step- Click on Partition in your Disk Utility

Open your Disk Utility application to highlight the external drive you are working on. Select the icon found under External to highlight the Partition option.

2nd Step- Allocate volume to each Partition

Once you click Partition, you will see a window on the left with a blue circle. The circle is named after the external drive and it also showcases the drive's size. Click on the + button to raise the number of partitions in the external drive. After you've down this, choose a volume for each of them by clicking the white circle.

At this point, rename the partitions then pick a file system for each of them.

3rd Step- Confirm the process

Hit the Apply button for a pop up to ask for confirmation. Make sure you read the text to be sure the command is in accordance with your instructions. If it is, click 'Partition to move on.

4th Step- Finish the process

To finish the process, you will have to check if the operation is successful from your desktop. A successful partition will show several icons. I prefer to create a partition for personal use and another for data backup. You may choose to use the partition you've created whichever way you deem fit.

How to Partition a Hard Drive or SSD on Mac (With Boot Camp)

You can also partition your Mac or SSD with Boot Camp if you want to run a Windows OS on the device. Boot camp has a handy app called Boot Camp Assistant for partitioning hard drive space so each partition created will run and operate both OS's independently.


There is a whole lot one can learn about hard drive partitioning on Mac computers but this summarized tutorial should be enough to guide you should you choose to partition your hard drive. Do note that creating new partitions consumes more space on your hard disk so make sure that you have sufficient space before you do it.


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When there are several partitions on your hard drive, and you need one bigger than the other on a particular drive to handle more data in it, you need to know methods to use to resize partitions on Mac. In this article, we'll talk about rules of resizing partition for Mac and how to backup data before resizing partition. Most importantly, you'll learn how to resize partition on Mac with Disk Utility.

    • 1. Backup Important Data Before Resizing Partition on Mac

    • 2. Resize Partition on Mac with Disk Utility

Partition hard drive for mac and pc

How To Partition Hard Drive For Mac

1Rules of Resizing Partition for Mac

If you want to resize a partition for your Mac without erasing data, there are some rules you need to follow. Ensure you pay attention to these rules for maximum results.

Partition Hard Drive Macbook Pro

  • The last partition on a drive cannot be increased. However, it can be deleted.

  • When a particular partition is deleted, the space from it is added to the previous partition.

  • Fusion drives can be quickly resized with the version of Mac Utility Disk used for its creation but not with an older one.

  • Before you resize a Mac volume, remember to back up the drive because resizing may need you to delete partitions

  • Trying to use pie charts to resize a volume is quite difficult to achieve. It is better to use optional sizes rather than using pie chart dividers.

  • If you want to increase a particular volume, then the volume next to the affected volume must be deleted to free up more space.

2How to Resize Mac Partition without Losing Data?

To keep your data safe and intact, make sure that you've backed up your data before resizing partition. Here we recommend a backup and recovery service - AnyRecover Data Recovery for Mac, which is a unique software developed by iMyFone team to help Mac users recover data from their disk. With AnyRecover unique algorithm, you can backup your data from a partition on Mac easily.

Key Features
  • Powerful Partition Recovery: Back up files from partition on Mac and recover all your lost files no matter how they were lost, such as format, resize, accidentally delete, etc.

  • Recover All Kind of Files: AnyRecover is a great software you can use to recover any file type. Whether it is documents, photos or videos, AnyRecover is the right tool for the job

  • Safe and Reliable: AnyRecover can recover your files safely without overwriting your existing files.

  • Supports All Mac OS: AnyRecover supports all Mac OS including macOS Mojave, macOS Catalina, macOS high sierra, and more.

Backup Important Data Before Resizing Partition on Mac

Firstly, download and install the software for Mac, then launch the software on your Mac.

Step One - Select the Path of the File Location

Set the path of data location where you want to get your lost files. Click the 'Start' button to begin the process.

Step Two - Scan the Selected Path

The program will start an All-Round scan on your selected location, once the process is done, all your lost files will be listed out in respective file types.

Step Three - Preview and Recover Lost Files

Before you recover the files, you'll have to preview them to be sure that you've selected the right files. Then click the 'Recover' button.

Now you're ready, without need for worrying about data loss, continue reading to know how to resize partition on Mac by using the Disk Utility.

Resize Partition on Mac with Disk Utility

Mac Disk Utility is a powerful built-in application in Mac OS that has undergone a series of changes with every major OS update.

Many Mac users have complained that using Mac Disk Utility to resize a Mac Volume is no longer easy. However, being an experienced Mac expert, we feel its interface is user-friendly and easy to use. Apple has come up with a well-arranged Mac Disk Utility interface that will make enlarging/resizing of a Mac Volume to be easy.

Steps to Resize Mac Partition

Step 1. Navigate through your menu and open Mac Disk Utility.

Step 2. When Mac Disk Utility opens, select the drive you want to resize.

Step 3. Then select Partition on the toolbar to resize the Volume of your choice using the Utility tool. A pie chart will open showing free space and space occupied by each Volume.

Step 4. For a volume to be enlarged, another one has to be deleted. So, choose the Volume you want to delete on the pie chart.

Step 5. Delete the Volume of your choice and tap the minus icon below the pie chart. The pie chart will give you a warning message about what you've done.

Step 6. If you're satisfied, tap Apply or tap Cancel to delete another Volume.

Step 7. Automatically, Mac Disk Utility will add up the freed space to the Volume instead of the deleted one. However, if you want to customize the Volume sizes, you can select the Volume, specify its size then hit Revert/Return. You can create a new Volume in the leftover space.

Partition Hard Drive Mac Os

Step 8. Drag the Pie Chart to adjust the size of each volume. When the Volume is adjusted to the size you desire, click Apply, and that's it.

However, there are times when disk utility can't resize partition. Don't worry, there are also solutions available. Refer to this page and you'll get it fixed.

Partition Mac Hard Drive For Windows

Conclusion: Who would have thought that backing up important files from partition or enlarging Mac partition can be done effortlessly? Well, with AnyRecover for Mac, you can also recover all your lost files which are formatted with a 98% recovery success rate. So, when next you're having problems recovering a deleted file, simply go for AnyRecover.