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Sep 07, 2017 Disk Utility for macOS Sierra: Partition a physical disk using Disk Utility. You can partition a storage device into several partitions, each of which acts as a separate volume. Mac OS Extended (Journaled): Uses the Mac format (Journaled HFS Plus) to protect the integrity of. Oct 31, 2017 Mac OS Sierra runs Disk Utility 16. As Dah•veed states it updates with the OS. If you are running Sierra and have DU 15 something is very wrong.
. Select the disk or volume in the sidebar, then click the Erase button. Click the Format pop-up menu, then choose a volume format.
Mac OS Extended (Journaled): Uses the Mac format (Journaled HFS Plus) to protect the integrity of the hierarchical file system. Mac OS Extended (Journaled, Encrypted): Uses the Mac format, requires a password, and encrypts the partition.
Mac OS Extended (Case-sensitive, Journaled): Uses the Mac format and is case sensitive to folder names. For example, folders named “Homework” and “HOMEWORK” are two different folders. Mac OS Extended (Case-sensitive, Journaled, Encrypted): Uses the Mac format, is case sensitive to folder names, requires a password, and encrypts the partition. MS-DOS (FAT): Use for Windows volumes that are 32 GB or less. ExFAT: Use for Windows volumes that are over 32 GB. Enter a name for the disk or volume.
![Disk Utility Mac Os Sierra Disk Utility Mac Os Sierra](/uploads/1/2/5/5/125536869/529343168.png)
To prevent the erased files from being recovered, click Security Options, use the slider to choose how many times to write over the erased data, then click OK. Writing over the data three times meets the U.S. Department of Energy standard for securely erasing magnetic media. Writing over the data seven times meets the U.S.
Department of Defense 5220-22-M standard. Click Erase, then click Done.
If you have recently upgraded or replaced the hard drive for your MacBook or iMac, you will need to reinstall macOS onto it. This guide will show you how to install macOS High Sierra onto a blank hard drive. Before you begin, you will need to create a bootable flash drive. This requires having access to a Mac currently running High Sierra, in order to be able to download the 7.7 GB High Sierra file in the App Store. You will so need an empty flash drive that can fit 5.4 GB. Before proceeding with the guide.