How to Recover Data from Unmountable Hard Drive on Mac

Recover your data from unmountable Mac hard drive by utilizing Remo Hard Drive Recovery utility. Click on the below download button to get the free software and restore unmountable Mac Volume formatted with HFS, or HFSX file systems. Try now!!!


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Hard Drive is a fundamental part of a computer or a laptop, which is used to store data. By dividing it into multiple logical Volumes, you can organize system files, application files and other user data independently. At the time of booting, the OS X program mounts all Volumes based on associated file system. Only after proper mounting of hard drive Volumes, OS can gather all information about the corresponding drives.

Sometimes, your Mac machine might stop booting due to inaccessible Volume. Hard disk Volumes may go unmountable because of various unexpected errors and thus your data becomes inaccessible. In such situation, you can try with Disk Utility for recovering files from unmountable Mac hard disk by following these steps:

  • Insert Mac OS X installation disk then restart the computer while holding the "C" key
  • From the installer menu, select Disk Utility and click the First Aid tab
  • Select the unmountable Mac drive
  • Click Repair option to start Disk Utility to check and repair the disk

After trying the Disk Utility, if the problem persists then it is better to employ a third party application and rescue unmountable Mac HDD Volume data. Therefore, in order to access hard drive data, you will have to format it first. After which you can recover hard drive data from unmountable Volume/partition by utilizing a good data recovery tool such as Remo Recover.

With the help of Remo Mac Data Recovery Software, you can easily recover unmountable Mac hard drive data within few minutes. It is a robust hard drive file recovery tool that offers a good combination of simplicity and advanced data recovery features to help Mac users to get back data from unmountable drive. Remarkable features, which make this application most preferred Mac hard drive recovery tool, are:

  • Supports lost files recovery from Mac hard drives, which failed to mount
  • It also supports data recovery unmountable SD card, pen drive, USB flash drive, external hard drive, FireWire drive, and other storage devices that fails to mount
  • Recovers data from inaccessible, formatted, deleted HFS+, HFSX and FAT Mac hard drive Volumes
  • Easy to use wizard, requires not much technical knowledge to perform recovery operation
  • Highly compatible with all popular versions of Mac OS X

Why Mac hard drive Volume fails to mount?

Some most common circumstances in which hard drive fails to mount on Mac computer are:

File System Corruption - Mac OS X fails to access Volume data if the local file system structure associated with Mac hard drive Volume is corrupt. Generally, file system becomes corrupt after improper formatting / re-formatting operations, erroneous data management operations etc.

Volume Header Corruption - Volume header is an integral part of Volume directory structure. Any corruption to this Volume header could damage log file information and makes the corresponding HDD Volume unmountable.

Disk Utility Failure - While performing disk management operations such as resizing, re-partitioning, file system conversion etc. using a Disk Utility tool, even a small error could result in unmontable hard drive.

In addition to the above concerned reasons, bad sectors on hard drive, Operating System malfunction, sudden system reboot etc. are also the considerable factors, which could let the hard drive become unmountable. However, you can avoid data loss after any unexpected data crisis uisng this Remo Recover tool for Mac, it is better to maintain proper backup of all your important files on a healthy storage drive.


Steps to recover data from unmountable Mac hard drive:

Step 1: Download and Install free Mac Data Recovery Software and connect affected hard drive as external storage drive. After launching the software, select "Recover Volumes / Drives" option from the home window as illustrated in figure 1.

Recover Unmountable Hard Drive Mac - Home Window

Figure 1: Home Window

Step 2: On the next window, select "Formatted / Re-Formatted Recovery" option as illustrated in figure 2.

Recover Unmountable Hard Drive Mac - Select Recovery Mode

Figure 2: Select Formatted / Reformatted Recovery

Step 3: Software will show all storage drives available with your Mac PC / laptop. Select unmountable hard drive as illustrated in figure 3.

Recover Unmountable Hard Drive Mac - Select Hard Drive

Figure 3: Select Hard Drive

Step 4: After successful completion of recovery operation, a list of recovered hard drive data will be displayed as illustrated in figure 4.

Recover Unmountable Hard Drive Mac - Recovered File List

Figure 4: Recovered File List

Step 5: Use Save Recovery Session option to avoid re-scanning of hard drive.

Recover Unmountable Hard Drive Mac - Save Recovery Session

Figure 5: Save Recovery Session