How to Delete Hard Drive Partition on Mac

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It is easy to delete a hard drive partition on Mac running macOS Catalina or Mojave, just like creating one. In the past, you may have made a partition to install a beta version of macOS or run Windows on it. Now, if you are looking to get this storage back, you can effortlessly use Disk Utility to remove the hard drive partition.

Before you proceed, you should know that;

  • You can remove the partition of internal as well as an external hard drive or SSD using Disk Utility.
  • Just to be on the safe side, I would recommend that you take a backup of your Mac.
  • Important: If you want to remove partition created by Boot Camp, then do not use Disk Utility. Use Boot Camp to delete the Windows partition and get back the space.
  • When you delete a partition, all the data on it is erased permanently.

So, that was some basics, now let’s jump on to the process;

How to Delete Partition on Mac Using Disk Utility

  1. Open FinderApplications folder → Utilities.Select Applications and Click on Utility on Mac Running macOS Catalina
  2. Now, double click on Disk Utility to open it.Select Disk Utility on Mac
  3. From the left sidebar, click on the partition you want to delete.
  4. Click on the Partition button from top.Select Partition and Then Click on Partition Button on Mac
  5. From the slide down options, click on Partition.Click on Partition from Pop-up on Mac
  6. From the pie chart, click on the partition you wish to remove. The solid color of the partition is the empty space, and shaded is the size of files in it.
  7. Click on the minus button.Select Partition and Click on Minus Button
  8. Click on Apply.Click on Apply to Remove Partition on Mac
  9. Now, click on Partition in Pop-up window.
    Select Partition from Pop-up Window
  10. After a partition is successfully deleted, click on Done.Click on Done to Delete Partition on Mac

You will see that the partition is not visible in the left sidebar of Disk Utility. Also, the space taken by this partition is added back to your primary volume.

How to Erase a Partition on Mac

If you don’t want to delete the partition itself, but only remove all the contents inside it, then erasing the partition is what you must choose. To do so, follow the easy steps below.

  1. Open FinderApplications folder → go to Utilities.Select Applications and Click on Utility on Mac Running macOS Catalina
  2. Now, Open Disk Utility by clicking on it.Select Disk Utility on Mac
  3. From the left sidebar, select the partition you want to delete.Select Partition in Disk Utility on Mac
  4. Click on the Erase button.Click on Erase Button on Mac Running macOS Catalina
  5. Now, click on Erase to confirm the action.Click on Erase to Confirm Partition Deletion on Mac
  6. After the process ends, click on Done.Click on Done to Erase a Partition on Mac

The hard disk partition has been successfully erased.

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