**Background:<br />** I plugged in my seagate back up hard drive today (not time machine) after a few months and my computer can read the drive but not write to it. **Two obvious problems:<br />** 1) The drive is formatted as NTFS<br /> 2) The drive has (from top to bottom) "Read & Write", "Read-only", "Read-Only" permissions.<br /> I know what you are going to say, but the NTFS writing software that seagate has to write to these type of drives doesn't work on this version of mac I guess because the update killed it. When I try to run the software mac says "the developer needs to update this software to work with this version of mac". I know each of those two problems are the cause of this issue but I am unable to find a solution. The "Ignore Ownership on the Volume" checkbox in the drive's show info box is not there. Does seagate have new software for this (I use a lot of open-source stuff, but for this I would prefer seagate official software)