external hard drive now read only after el capitan update

It sounds like Seagate installs an NTFS driver. If so, it likely needs an update.

OS X does not natively write to NTFS.

If you don't use that drive with windows, I would erase it and partition as GUID partition table, Mac OS Extended (Journaled) format.

You will have to move your data off of it, then restore when you've reformatted it.

I was having the same problem with Seagate BUP but have resolved it by reinstalling Tuxera NTFS (which is what I already had installed on Yosemite).

I was trying to find out why it had stopped working and it appears that when upgrading to El Capitan some of the scripts that Tuxera needed to run to allow read/write access had been removed. So resintalling the software restored these scripts and it is now working as it should.

Obviously I'm not sure if this will work as a solution for all HDDs or for NTFS software other than Tuxera (e.g. Parygon) but might be worth trying for those still struggling.

Good luck!

Awesome job muzikT70, This is the answer, no need to look further. Thanks a lot

I created an account just to confirm. This worked like a charm!! Thanks you!

http://www.seagate.com/in/en/support/downloads/item/ntfs-driver-for-mac-os-maste r-dl/

Solution! Worked for me

Solution for Seagate devices

Download the file in the link attached. It unlocks NTFS for Mac- Paragon for Seagate devices (The latest version)

http://www.seagate.com/in/en/support/downloads/item/ntfs-driver-for-mac-os-maste r-dl/

Thank you for the post!!!!!!!! it worked like a charm. Now I have all my files back.

This is excellent! I literally was going to buy a Windows 10 laptop because this just halted my schoolwork last night. Thanks!

For those that are using a Samsung External Hard Drive and are encountering the problem with it being "Read Only" now after installing El Capitan, I simply downloaded the updated driver from Samsung's website and it fixed the drive for me after installing and restarting my computer. http://www.seagate.com/support/downloads/item/samsung-ntfs-driver-master-dl/

I am using a Samsung D3 Station Media 2 TB Drive.

This is exactly the same problem I have.

I have a Samsung M3 1TB portable hard drive which first became read only after the El Capitan 10.11 update and is now just completely unrecognised by my mac. My mac still recognises normal MS -DOS flash drives. The hard drive is still being recognised by my MacBook and I can read/write, which I have not updated to El Capitan. Have tried talking to apple support via the online chat and screen sharing and it did not help at all.

Have you (or anyone else) found a solution to this yet?

My Toshiba drive is the one that lost it's Write capabilities. I'm REALLY trying to be lazy to avoid transferring a full Terrabyte off of it just to try first aid or reinstalling the Tuxera software like you said. Particularly because one of the largest folders and its contents is no longer visible/can be found with a search. Will it delete everything if I try either of those options while it still has a bunch of files on it?

thanks - I downloaded the drivers and everything is "peachy keen".

It was fast and painless.

Thanks - this worked. And you can ignore the warning (only for seagate-devices). It works with every harddisk (I have a Samsung).

This is obviously a marketing trick 👿

Hello, good afternoon,

few months ago acquired an external drive "1T Toshiba Hdd Password", which works for Mac and so far it was ok, Then few days ago i update my machine to the new operating system from mac called "captain", and with this system does not recognize the disk.

Thanks for your attention and I hope a good solution.

Lampis wrote:

Hello, good afternoon,

few months ago acquired an external drive "1T Toshiba Hdd Password", which works for Mac and so far it was ok, Then few days ago i update my machine to the new operating system from mac called "captain", and with this system does not recognize the disk.

Thanks for your attention and I hope a good solution.

Toshiba secretly installed an NTFS driver onto your Mac so that you could write to a Windows formatted disk. It should have advised you to format it for a Mac so you wouldn't run into this problem. The drivers will probably fail at nearly every update and you'll have to go through this process of updating their drivers to make the drive work.

So, either get an update from Toshiba, or copy the data off the drive, format it as Mac OS Extended (Journaled), then copy everything back.