To fix a corrupted external hard drive on Mac, the solutions are categorized into without formatting and by formatting.įix a corrupted external hard drive without formattingįormatting usually is the least wanted solution for fixing the problem, so we gather two fixes without formatting here. The corruption not only happens to external hard drives but also to internal Mac hard drive and other external devices. Consequently, users will be unable to open the external hard drive nor access the files on it. The errors will make the external hard drives failed to be mounted, recognized or read by MacOS.
The errors may resident in the partition table, file system, root directory or large data sectors. Different from hardware damages, a corrupted external hard drive usually results from software errors.
