Unable to mount Macintosh HD in Disk Utility on macOS High Sierra and access the data stored on the Mac hard drive? This article will show you how to fix Macintosh HD not mounted on High Sierra Disk Utility issue without losing data. Macintosh HD not mounted problem is quite common no matter you're running, Mojave or earlier Apple operating systems. Free studio screenshot for mac download. Once the Macintosh HD won't mount in Disk Utility, all the data on the Mac hard drive becomes inaccessible, and most of the operations are greyed out or disabled except the Erase button.

No partition scheme option when erasing a USB disk in MacOS High Sierra? Ask Question. Up vote 22 down vote favorite. In previous versions of MacOS, I recall that Disk Utility provided an option to select the partition scheme (GUID, MBR, or Apple). Windows 10 not recognized mac high sierra (APFS system) partition. Oct 3, 2017 - A new bug has been uncovered in the Disk Utility program that ships with macOS 10.13 High Sierra. Here's a diagnosis of the problem and how.

But erasing process will wipe out all the data stored on the Macintosh HD. So, what to do if Macintosh HD is unmountable in Disk Utility High Sierra without worrying about data loss? Why Macintosh HD not mounted in Disk Utility/High Sierra? If Macintosh HD can't be mounted in Disk Utility, it's mainly because that the file system of the drive is corrupted and the operating system can't recognize it. In general, the corruption is due to incorrect formatting of the disk, power failure, partition table damage, virus attacks, disk corruption and others. Fix Macintosh HD not mounted in High Sierra/Disk Utility issue Pro tips: Before fixing the Macintosh HD not mounted in High Sierra Disk Utility issue, please stop using the Mac computer and make sure you have a backup copy of the Mac hard drive.

That's because, your any further operation on the Mac computer, including troubleshooting the Macintosh HD errors, may write new data to the unmounted Mac hard drive and overwrite the original data. Without backups, you need to recover data from the not mounted Mac hard drive with. IBoysoft Mac Data Recovery is which helps you recover data from the unmountable Macintosh HD,,, and recover data from corrupted drives, etc. It is fully compatible with /High Sierra 10.13/10.12 and macOS 10.11/10.10/10.9/10.8/10.7. It supports documents, pictures, audios, videos, emails, etc. And different storage devices such as hard drives, external hard drives, USB flash drives, SD cards, etc.

Note: You need to at first create a bootable drive to start your Mac computer up, then you can recover data from it. Here is the detailed tutorial. Step 1: Download iBoysoft Mac Data Recovery on another Mac computer which works normally. Step 2: Install and launch iBoysoft Mac Data Recovery on the healthy Mac computer. Step 3: Click iBoysoft Data Recovery on the menu bar and then select 'Create Boot Drive'.