

PS: I am not using any backup software with any of my drives. Since all tests are passed, why is the drive keeps spinning and the light flashing even if it’s unmounted? (but other drives don’t behave like this) I have tried other USB ports on the Mac and the drive behaves the same way regardless which port it is attached to.

When I unmount them, they spin down and won’t start spinning. I have 2 other older WD portable drives (WD Elements 1TB and 2TB). Then the drive is just keeps spinning and never stops.

If the drive is not recognized by Disk Management, then there's something wrong with the enclosure or the drive itself. In case it is, but has damaged partitions and/or file system, you can run some data recovery program on it, so you can see if the data over there is recoverable: Īfter that, you can run WD's DLG short and extended tests on it: If the issue persists, you can go to Disk Management and see whether and how is the drive recognized over there. I even see the button to eject the device, but I cannot find any option to select the drive and contents there in. When I go to Devices and printers I do see it there and all details show the device is working properly.

That way, you will rule out a possible connection related issue. Help My brand new Passport Ultra is no longer showing up as a drive under MY COMPUTER. One thing you can start with is to just attach the drive with different USB cable to another computer. Is the drive under warranty? Do you have some really important data stored over there?
