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User profile for user: michaeltee michaeltee Desktops Speciality level out of ten: 0. More Less. Question marked as Solved User profile for user: Niel Niel.

Assign Drive Letter

Apple ID Speciality level out of ten: 0. View answer in context. All replies Drop Down menu. Besides, if you get your data lost during the problem-solving process, you can retrieve your data with EaseUS Data Recovery Wizard. Try these tips without worries! I'm having this problem that my Seagate external hard drive suddenly turned to read-only this morning when I connected it to Mac. I could only read and view saved data on the drive. But get no access to use the data on my external hard drive.

If you have any clues to get permissions to access the read-only external hard drive on Mac, please tell me. Thanks very much.

Solving read-only conditions for external hard drives

If you right-click your external storage device, select 'Get Info', and see 'You can only read' at the bottom of the info window, you are encountering one of the commonest problems with an external hard drive. When you can't use your external storage devices normally, it could be quite annoying and frustrating for the problem not only represents a threat to your work efficiency but also shows the possibility of data loss.

Why can you only read the external hard drive that is connected to your Mac? There are three possible reasons. Right-click your hard disk and select 'Get Info'. If you find your external hard drive is NTFS format, that's what the cause is. The incompatibility of the file system is the main cause of the error-external hard drive 'Read Only' on Mac. NTFS is a file system that is optimal for Windows-based computer. Although the Mac operating system allows you to read the files on external hard drive, you can't write files to it because the way that NTFS writes data to the device is incompatible with the way of macOS doing it.

Go to the Fix.

Iomega external hard drive reading problem on Mac

An external hard drive is subject to the access permission set up by OS X for all files and folders on the system. When you use the device on another computer with a different OS, the permission settings with it may not be recognized or prevent access to the files on the hard disk. Another common cause for the external hard drive 'Read Only' problem on Mac is the formatting errors of the storage device itself. If you see a warning says the device is only being mounted in read-only mode while connecting, your hard disk is diagnosed to have formatting errors that prevent you from writing files to it.

Identify the cause that leads to the 'Read Only' error on your Mac from the information above, then follow the corresponding solution to solve the problem with ease.

Secret of "dead" external HARD DRIVES! How to QUICKLY fix the problem, its cause and solution

If your external hard drive is read-only on your Mac due to its NTFS file system, you can easily fix it by reformatting the device to a Mac-compatible format with the built-in Disk Utility on Mac. Before that, remember to back up your external hard drive quickly with a highly-efficient data backup software since the formatting will erase all the files on the device. Step 2: In the list of available drives on the left, choose the problematic external hard drive.

Then click the 'Erase' option in the main window. Step 3: Choose a proper file system and rename your hard disk. The only two areas where the device stumbled were in price and convenience.

Micro Comp Inc.

Despite its price, the Iomega Mac Companion is great to look at and functions perfectly well. If you need a storage buddy to go along with your Mac, consider this drive.

External Hard Drive Not Showing Up in Windows or OS X?

At a Glance. Note: When you purchase something after clicking links in our articles, we may earn a small commission. Read our affiliate link policy for more details. Pros Useful extras Good speed Attractive design.


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