Mac OS Mojave 10.14.5 usb drive readonly

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Level 1

8 points

Mac OS Mojave 10.14.5 usb drive readonly

I've been using same drive on my former MacAir and also on my new MacBook Pro. It worked. But after update to 10.14.5 it is not possible to copy on the external drive or usb stick. I read from some comments, that the problem is with company policy? How I can fix the issue if I'm only home user and want to save my pictures and created videos on the drive and share these via this...

And I don't want to buy any online program as my drive was before working on PC and iOS. This is not my fault....Apple should fix it?! I found one comment where someone told that he/she called to Apple support and it solved the problem? How?

MacBook Pro 13”, macOS 10.14

Posted on May 28, 2019 11:07 AM

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Answer 1

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JimmyCMPIT

Level 7

29,229 points

May 28, 2019 11:10 AM in response to pille-riin

How is the US drive formatted?

If it's NFTS then it's read only on Mac by default.

select the disk, type CMD+i

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Answer 2

May 28, 2019 11:10 AM in response to pille-riin

If it is formatted as NTFS then the Mac will only be able to write to it when you upgrade the third party software that enable the Mac to write to it.

A much better solution is to reformat the drive to a format the Mac is able to read and write to.

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Answer 3

pille-riin Author

Level 1

8 points

May 28, 2019 11:35 AM in response to JimmyCMPIT

Thank You! It sure is NTFS...strange that i could copy my files on there with my MacBook Air. Is it something that has been changed lately? Not sure. :) But as I now know that the problem is in format i found solution. I have virtual windows on my Mac, so I can move my files trough that. Parallels is perfect for that!

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Answer 4

May 28, 2019 11:38 AM in response to pille-riin

The third party software is not compatible with the new version of macOS that you just upgraded to. You either must upgrade the third party software or reformat to a file system that is compatible with macOS. Personally I suggest that the reformat is the preferred solution.

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Answer 5

JimmyCMPIT

Level 7

29,229 points

May 28, 2019 12:47 PM in response to pille-riin

100% agree with Allan. If you do not need windows account rights than NFTS should be avoided on Mac. You are relying on 3rd party software to make it work, thats one update away from failure.

If you need to copy between mac and windows use FAT, FAT32 or ExFAT

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Mac OS Mojave 10.14.5 usb drive readonly

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