Already checked all the existing threads but no joy.
Able to occasionally 'see' My Passport in Disk Utility but unable to complete Erase - Unmount - Repair external hard drive.
Message: Unmounting disk
Couldn't unmount disk
Operation failed.
Tried replacing cable but no joy - Tried switching USB port but again no joy.
I've given up on saving data on the hard drive I just want to reformat it and use it.
Any ideas anyone?
Able to occasionally 'see' My Passport in Disk Utility but unable to complete Erase - Unmount - Repair external hard drive.
Message: Unmounting disk
Couldn't unmount disk
Operation failed.
Tried replacing cable but no joy - Tried switching USB port but again no joy.
I've given up on saving data on the hard drive I just want to reformat it and use it.
Any ideas anyone?