Click the Erase button on the toolbar.

From the containers shown in the sidebar, select the one to erase.

Go to Disk Utility and choose View > Show All Devices.

Click Done after the deletion process is over.

Once done, click Apply and then click Partition on the dialogue box that appears.

If the Delete button is dim, you cannot delete that partition. Select the partition you want to delete, and click the Delete (-) button.

In the dialogue box that appears, click Partition.

Go to Disk Utility on your Mac, select a volume from the sidebar, and click Partition on the toolbar.

Please note that if you want to partition your drive to run Windows on one of them, use Boot Camp Assistant instead of Disk Utility.

Click Apply, then click the Partition button.

Provide a volume name, choose a file system format, and enter the size of your volume.

Click the Partition button from the toolbar, select the Add (+) button from the pop-up, and select Add Partition.

In Disk Utility, select a volume from the sidebar of the hard drive you want to partition.

If you do not know how to, here is a quick tutorial: To partition your hard drive, you can use Disk Utility on your Mac.

APFS volumes offer more flexibility to the system and allow the manual selection of the size limit for each volume. However, if your Mac uses APFS (Apple File System), it is recommended to create a volume instead of partitioning.

So, a quick word of advice: do not partition if your Mac is low on disk capacity.įor those who use HFS+ (available on all macOSes before Catalina) and have enough space for partitioning your hard drive, then go ahead. That means each OS takes a sizeable portion, and the disk space available after partitioning is lesser than the original. While your Mac partitions your hard drive into separate operating systems, it also splits the original usable space in the hard drive. The one disadvantage of partitioning is your hard drive space. It enables you to run two different operating systems on a single device, like the Windows OS and macOS, or two different macOS versions, like Monterey and Big Sur. Partitioning your Mac is splitting your hard drive into multiple small, usable systems called containers.

Partition disk mac