The Passport Ultra comes ready to be use on Windows computer formatted on NTFS and Mac will see the drive as read only and that’s why you are able to see the unit but not able copy or delete files from it.
You will need to reformat the drive to make it compatible with Mac.
Same problem. My year-old 2TB WD Passport Ultra was reformatted to FAT and worked fine on my ancient MacBook running Snow Leopard
ERmorel wrote:
Hello,
The Passport Ultra comes ready to be use on Windows computer formatted on NTFS and Mac will see the drive as read only and that’s why you are able to see the unit but not able copy or delete files from it.
You will need to reformat the drive to make it compatible with Mac.
I plugged it into my new 15-inch MacBook Pro running OSX 10.9.4 and now it will not copy or delete files from the drive, i.e., it behaveas as is formatted for Windows as it would straight out of the box.