How to partition a Mac hard drive

How to partition a Mac hard drive

Partitioning your Mac is basically splitting your hard drive into separate, usable systems. It makes it possible to run two separate operating systems on one device or use one partition as a backup/recovery system…follow the steps below to partition a Mac hard drive.

How to partition a Mac hard drive

Before you start, you should back-up the drive you intend to partition. Better still, clone it using a tool like Carbon Copy Cloner. Assume the worst will happen and you’ll lose all the data stored on the drive when you attempt to partition it. Make contingencies. A bootable clone will have you up and running again in no time.

  • Open Finder from your dock.
  • Select Applications.
  • Scroll down and open the Utilities folder.
  • Double-click to open Disk Utility.


  • Select your hard drive in the Disk Utility window. It will be the first drive on the list. It might be named “Fusion,” or “Macintosh HD.”
  • Click on the Partition tab.
  • Click the plus (+) button.

  • Change the size of the partition you wish to use by dragging the resize controls. The used space is represented in blue.
  • Name the new partition.
  • Click apply.

Disk Utility will check the disk and make changes. This will take several minutes.

That’s it . you’re done. you should now see 2 hard drives on your mac.

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Also Read : How To Run Windows On Mac (Dual Booting)