If you’re having problems with a disk, Disk Utility can check the disk and repair problems it detects. How to repair a disk To browse the Disk Utility User Guide, click Table of Contents at the top of the page. Go to Disk Utility - Erase Disk - Select Erase with Journaling. Locked hard drive can't reinstall Lion OSX. @danj also suggested in this solution to create a separate bootable thumb drive to reinstall OS X from, erase the disk using Disk Utility, and that apparently solve the issue.
In this article, I’m going to show you how to fix Erase Process Has Failed during Partitioning macOS High Sierra hard drive on Disk Utility. You might have experienced this issue on the later version of MacOS (macOS Sierra, Mac OS X El Capitan, Mavericks, Yosemite”. I’m not really 100% sure that why this error occurs sometimes. In some cases, it’s because of disk scheme and format. In this guide, I’m going to show you two methods that really help you to sort out this frustrating problem.
Fixed Erase Process Has Failed Click Done to Continue
This error occurs differently for the people but the solution is almost the same. This guide is going to assist you to figure out this matter.
During the macOS Sierra beta, my “test machine” was partitioned with Mac OS X El Capitan on one partition and macOS Sierra beta on another. Launching Disk Utility Disk Utility can be launched several different ways. First, one can go to Finder Go Utilities, then double-click on the Disk Utility icon. You can use macOS Sierra’s Disk Utility app to create a software RAID, but you can also use it to delete the RAID. If you created a RAID using Disk Utility and now you don’t want to use the.
Disk Utility For Mac Sierra Vista
![Free disk utility for mac Free disk utility for mac](/uploads/1/2/6/6/126601929/665895706.png)
- Erasing “Untitled 3” and creating “Untitled 3”
- Erase process has failed. Click Done to Continue
- Erase process has failed couldn’t unmount disk
- Erase process failed. “press say to continue
Oct 05, 2017 Disk Utility Bug in macOS High Sierra Exposes Passwords of Encrypted APFS Volumes in Plain Text Updated Thursday October 5, 2017 8:07 am PDT by Joe Rossignol.
Method #1. Erase a Volume
You see this error message when you want to erase a partition on Disk Utility. If you want to fix it then navigate to your windows operating system and open Disk Management. Create a new volume and choose the File System “exFat“. Check the step by step guide on how to create a new volume on Windows 10. Once the partition has been created, boot into macOS High Sierra Bootable USB installer. Or if you are trying to build a Hackintosh and having this problem then boot via USB installer.
Create a New Volume
On the Disk Utility window select the partition you’ve created on Windows then click on Erase tab. As a name, choose any name for the volume you want and as a format select “MacOS Extended Journaled“. Select the scheme “GUID Partition Map” and click on Erase button.
macOS High Sierra Disk Utility
If this solution doesn’t work for you or even you run Windows operating system and you’re on an actual Macintosh environment so follow the 2nd method that I’m pretty sure will ease you.
Method #2. Erase the Whole Drive
If the first method didn’t work for you, just backup or transfer all your data from the target drive to save place like an external HDD. Once you’re done, follow the step below.
Step #1. Click on small down arrow at the top-left corner of the Disk Utility window and select Show All Devices.
Step #2. Select the main hard drive, not the volume then click on Erase tab. A small window will appear now. As a name type any name you want and as format select Mac OS Extended Journaled, as a scheme select GUID Partition Map. Click Erase button and wait for a while.
As you can see the screenshot down below has formatted successfully without any issue.
Mounting Disk is Successfully Done
Conclusion
In this guide, we’ve covered some tips and tricks Fixed Erase Process Has Failed, Click Done to Continue on macOS High Sierra or older version of Mac Operating system on Disk Utility Window. Again, if you’ve got any kind of issue on this topic or you know another method please let us know in the comment section down below this post. We’ll be so happy to hear any kind of feedback from you guys.
Erasing your disk: For most reasons to erase, including when reformatting a disk or selling, giving away, or trading in your Mac, you should erase your entire disk.
Erasing a volume on your disk: In other cases, such as when your disk contains multiple volumes (or partitions) and you don't want to erase them all, you can erase specific volumes on the disk.
Erasing a disk or volume permanently deletes all of its files. Before continuing, make sure that you have a backup of any files that you want to keep.
How to erase your disk
- Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
If you're not erasing the disk your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. - Choose View > Show All Devices from the menu bar in Disk Utility. The sidebar now shows your disks (devices) and any containers and volumes within them. The disk your Mac started up from is at the top of the list. In this example, Apple SSD is the startup disk:
- Select the disk that you want to erase. Don't see your disk?
- Click Erase, then complete these items:
- Name: Type the name that you want the disk to have after you erase it.
- Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
- Scheme: Choose GUID Partition Map.
- Click Erase to begin erasing your disk and every container and volume within it. You might be asked to enter your Apple ID. Forgot your Apple ID?
- When done, quit Disk Utility.
- If you want your Mac to be able to start up from the disk you erased, reinstall macOS on the disk.
How to erase a volume on your disk
- Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue.
If you're not erasing the volume your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder. - In the sidebar of Disk Utility, select the volume that you want to erase. The volume your Mac started up from is named Macintosh HD, unless you changed its name. Don't see your volume?
- Click Erase, then complete these items:
- Name: Type the name that you want the volume to have after you erase it.
- Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
- If you see an Erase Volume Group button, the volume you selected is part of a volume group. In that case, you should erase the volume group. Otherwise, click Erase to erase just the selected volume. You might be asked to enter your Apple ID. Forgot your Apple ID?
- When done, quit Disk Utility.
- If you want your Mac to be able to start up from the volume you erased, reinstall macOS on that volume.
Reasons to erase
You can erase at any time, including in circumstances such as these:
- You want to permanently erase all content from your Mac and restore it to factory settings. This is one of the final steps before selling, giving away, or trading in your Mac.
- You're changing the format of a disk, such as from a PC format (FAT, ExFAT, or NTFS) to a Mac format (APFS or Mac OS Extended).
- You received a message that your disk isn't readable by this computer.
- You're trying to resolve a disk issue that Disk Utility can't repair.
- The macOS installer doesn't see your disk or can't install on it. For example, the installer might say that your disk isn't formatted correctly, isn't using a GUID partition scheme, contains a newer version of the operating system, or can't be used to start up your computer.
- The macOS installer says that you may not install to this volume because it is part of an Apple RAID.
About APFS and Mac OS Extended
Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format for you.
How to choose between APFS and Mac OS Extended
Disk Utility tries to detect the type of storage and show the appropriate format in the Format menu. If it can't, it chooses Mac OS Extended, which works with all versions of macOS. If you want to change the format, answer these questions:
- Are you formatting the disk that came built into your Mac?
If the built-in disk came APFS-formatted, Disk Utility suggests APFS. Don't change it to Mac OS Extended. - Are you about to install macOS High Sierra or later for the first time on the disk?
If you need to erase your disk before installing High Sierra or later for the first time on that disk, choose Mac OS Extended (Journaled). During installation, the macOS installer decides whether to automatically convert to APFS—without erasing your files. - Are you preparing a Time Machine backup disk or bootable installer?
Choose Mac OS Extended (Journaled) for any disk that you plan to use as a Time Machine backup disk or as a bootable installer. - Will you be using the disk with another Mac?
If the other Mac isn't using macOS High Sierra or later, choose Mac OS Extended (Journaled). Earlier versions of macOS don't work with APFS-formatted volumes.
How to identify the format currently in use
If you want to know which format is currently in use, use any of these methods:
- Select the volume in the Disk Utility sidebar, then check the information shown on the right. For more detail, choose File > Get Info from the Disk Utility menu bar.
- Open System Information and select Storage in the sidebar. The File System column on the right shows the format of each volume.
- Select the volume in the Finder, then choose File > Get Info from the menu bar. The Get Info window shows the Format of that volume.
If your disk or volume doesn't appear, or the erase fails
Disk Utility For Mac Sierra Pro
- Shut down your Mac, then unplug all nonessential devices from your Mac.
- If you're erasing an external drive, make sure that it's connected directly to your Mac using a cable that you know is good. Then turn the drive off and back on.
- If your disk or volume still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your disk or Mac might need service. If you need help, please contact Apple Support.
Learn more
Free Disk Utility For Mac
- If you can't start up from macOS Recovery, you can use a different startup disk instead.
- If Disk Utility shows a Security Options button in the Erase window, you can click that button to choose between a faster (but less secure) erase and a slower (but more secure) erase. Some older versions of Disk Utility offer the option to zero all data instead. These secure-erase options aren't offered or needed for solid-state drives (SSDs) and flash storage.