Select the partition you wish to remove then click on the Delete - button. A new window will open with a pie chart of existing partitions. If you want your Mac to start up again from the volume you've just erased, select Reinstall macOS in the utilities window, then click Continue and follow the onscreen instructions. Click on the Partition tab in the Disk Utility toolbar.When you've finished, close Disk Utility to return to the utilities window.Optional: if you used Disk Utility previously to add internal volumes other than Macintosh HD, you can erase them individually using the same process. upgrade method and a clean install, I now recommend the latter only in the following situations: Your startup disk has errors that neither Disk Utility.If you can't see this button, click Erase instead. Format: APFS or Mac OS Extended (Journaled), as recommended by Disk Utility.Click the Erase button in the toolbar, then enter the requested details:.Sign in and open disk management then select the partition that gives the error, then Delete that and create new volume but this time choose the file system exFAT.

Select Macintosh HD in the sidebar of Disk Utility. When you got this problem on disk utility, then power off your PC and boot into your Windows.At this point, you can try solving it with Recovery Partition. From the utilities window, select Disk Utility and click Continue. If the error message appears during 'First Aid' or formatting a non-boot disk, the above means will not make effects surely.If asked, select a user you know the password for and enter their administrator password.If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall macOS, then restore your backed-up data. Start up from macOS Recovery: turn on your Mac, then press and hold Command (⌘) and R immediately until you see an Apple logo or other image. If Disk Utility can’t repair your disk, or you receive a report that the First Aid process failed, try to repair the disk or partition again.

Disk utility erase process has failed