"Invalid Node Structure" is a sign of corrupted storage disk directory structure. When invalid node structure error happens, most of the time we would get stuck at the gray screen with Apple logo and spinning wheel. Maybe we can boot into macOS after getting into this trouble, but that will make us lose some applications and files.
Reliable way to repair/fix invalid node structure on Mac
We can firstly recover data from invalid node structure hard drive with Mac data recovery software, and then fix the drive with Disk Utility.
1st step: Recover data from invalid node structure hard drive
Professional and safe Mac data recovery software: iBoysoft Mac Data Recovery is all we need to recover data from invalid node structure hard drive on Mac.
iBoysoft Mac Data Recovery can recover lost documents, photos, videos, music, emails, etc. from Macintosh HD, external hard drive, USB drive, SD card and other storage drives, no matter those storage devices have invalid node structure error, or to be unreadable, unmountable, formatted, inaccessible, etc.
Tutorial to recover data from invalid node structure hard drive on Mac
Step 1: Launch iBoysoft Mac Data Recovery.
Step 2: Select the invalid node structure hard drive and click Next button to scan it.
Step 3: Preview the scanning results and choose data we want to recover, then click Recover button to finish data recovery from invalid node structure hard drive.
2nd step: Repair/fix invalid node structure error by reformatting
After finishing data recovery from invalid node structure hard drive, we can repair/fix invalid node structure on Mac by reformatting it with Disk Utility.
Step 1: Launch Disk Utility from Utilities.
Step 2: Select the invalid node structure hard drive.
Step 3: Choose the Erase function, complete name, format, scheme information, and then click Erase to reformat it.
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