

Disk permission is changed as read onlyĬase 1: The file system on external hard drive is NTFS.This article discusses 3 quick solutions to help you solve Mac external hard drive read only error, based on the 3 main causes listed below: It is not impossible that external hard drive is read only on Mac, preventing you from copying or transferring any files from Mac to the external hard drive.įor example, many people have reported that their WD My Passport read-only on Mac and don't know how to fix Seagate external hard drive read only on Mac. After an external hard drive with Mac compatible file system is connected to a Mac computer, you can open it and have full read and write access.
