How to Remove the Partition on a Mac

The Disk Utility tool is included with all Apple computers running the Mac OS X operating system. With Disk Utility, Mac users can manage both internal and external hard drives. You can format hard drives, create new partitions and even remove existing partitions. Keep in mind that removing a partition will erase all of its data and release the free disk space back into the other existing partitions.

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You can use Disk Utility on a Mac to remove partitions from an external hard drive.

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Click on the "Finder" icon in the dock.

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Go to the "Applications" section of your primary hard drive and open the "Utilities" folder.

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Double-click on the "Disk Utility" icon.

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Highlight the hard drive that contains the partition you want to remove from the list on the left side of the window.

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Go to the "Partition" tab at the top of the window.

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Highlight the partition that you want to remove in the "Volume Scheme" diagram and then click on the minus symbol

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Press "Remove" to confirm your decision to remove the selected partition from the hard drive.