People use external hard drives as extended storage for computers or backup disks for important files, as a result, frequent file sharing, and modification are needed. If external hard drive suddenly shows read-only after you attach it to your Mac device, it is definitely very inconvenient to use this external hard drive.
In this tutorial, I will explain three scenarios you may face and their corresponding solutions. Let’s get to it.
Scenario 1: The external hard drive is formatted with the NTFS file system.
macOS is fully compatible with Microsoft FAT and exFAT file systems but not the Microsoft NTFS file system. By default, an NTFS-formatted disk can be mounted and read on macOS, but files will appear locked or read-only. You can’t rename, delete or edit the files at all.
To solve the incompatibility problem, you can choose to format the NTFS drive, install an NTFS for Mac driver or use Terminal.
Method 1: Format the external hard drive in Disk Utility
Back up the files by copying and pasting the files from the external hard drive.
Open Disk Utility through Finder > Applications > Utilities.
Select the NTFS drive name.
Click the Erase tool.
Write down a name, select FAT/ExFAT in Format, and GUID Partition Map in Scheme.
Click Erase to confirm.
Quit Disk Utility and reconnect the external HDD if necessary.
Method 2: Install an NTFS for Mac dr ..
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