Try to connect the WD hard drive with a different Mac computer to check if the WD hard drive can be recognized on that Mac.

Try a different USB-C adapter to connect the WD hard drive if your Mac only has the Thunderbolt 3 port.

Try a different USB cable and port for power and data supply, especially if the My Passport external hard drive is not showing up in Disk Utility.

Connect the WD hard drive directly to the computer and do not use a USB Hub.

Make sure the WD hard drive is externally plugged into a wall outlet if it's a WD desktop hard drive like WD Elements Desktop and My Cloud.

When your Mac can't recognize an external hard drive, you can always do the following quick fixes at the very beginning. Or else the external hard drive would not even show up in Disk Utility.

So you can connect WD My Book to another healthy computer.Ī proper connection is the most basic condition that Mac can access the WD hard drive. Sometimes the computer crash can cause inaccessible data and external hard drive. Verify the computer you are using is working normally.If yes, you might need to consider backing up or recovering data from the WD hard drive immediately. Notice whether there are abnormal noises, like clicking, grinding and scratching, when WD My Book is working.

If it does but you can't access the data, it might mean the Western Digital drive is damaged. Make sure the WD external hard drive is securely connected to the computer through a tough power cable and data cable.Yet how do you know if the external hard drive is damaged or fails? Here we list some ways to help you make a correct diagnosis before deciding to replace it and recover lost data. Some issues might happen with a WD external hard disk, such as hard drive crash, undetected WD hard drive, bad sector, etc. WD My Book external hard disk is no exception. But nothing can be used repeatedly without any wear and tear. Western Digital external hard drive is well-known for its reliability and durability.

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