Disk Utility Internal Error and Mac Data Loss

In Mac OS X, Disk Utility is used to perform several disk related tasks. It is beneficial in creating, converting, compressing and encrypting disk images, checking the SMART status of hard drive, verifying the disk integrity, mounting or unmounting the hard drive, checking and repairing file system errors and repairing hard drive permissions.

This efficient application does not work in all possible situations and may not prevent the data loss circumstances. When data loss occurs, Mac Data Recovery is required to salvaged affected storage media and retrieve lost data.

In a practical scenario, when you try to repair hard drive permissions using the Disk Utility program, you might encounter the below error message:

“Disk Utility Internal Error.

Disk Utility has lost its connection with the Disk Management Tool and cannot continue. Please quit and relaunch Disk Utility.”

After this error message, the repairing process gets halted and the drive remains intact, i.e. in damaged state. At this point, you are required to find out the cause of this issue and go for Data Recovery Mac to sort out it.


As stated in the above error message, this issue occurs due to some errors in Disk Management Tool when it encounters the particular file, known as Chess. If you find out that the problem is caused by this file, then you should delete this file. This behavior of Mac OS X may also occur if something goes wrong with the file system or other system files. File system corruption is one of major causes of data loss.


If deleting the Chess file does not resolve this problem, try Repair Disk from the boot disk of Mac OS X. For file system related issues, format the drive and reinstall the operating system. It will solve most of the hard drive related problems but also deleted all of the data from hard drive. It requires Mac Recovery Software to recover data loss such cases.

Recovery is possible with the help of powerful third party applications. The software are pretty easy to use and thus allow you to have Mac Data Recovery on your own. By effective scanning techniques, these tools can handle all types of data loss problems. Due to read only and non destructive conduct, they do not alter the original data on hard drive.

Stellar Phoenix Macintosh Data Recovery is the most efficient and reliable solution for all your Mac data loss scenarios. It supports Mac recovery from HFS, HFS+, HFSX, HFS Wrapper and FAT file system volumes. The software is compatible with Mac OS X 10.6, 10.5, 10.4 and 10.3.9.