Using the DIsk Utility, you may verify if your Mac drive is corrupted. The verify volume command should return with the result of your hard drive’s diagnosis. Should the Disk Utility confirm that your Mac drive is corrupted, create a backup of your data and you may then use the repair volume command.nnOn the other hand, the File System Consistency Check command, which you can run by using the Terminal app to repair your HFS partition. Should all these attempts fail, contact TTR Data Recovery to put your Mac device back in order.