It can be seen neither in Finder nor in Disk Utility. This has happened first time in my 1year of purchase. I tried connecting other external hard drives to the mac and it worked. I tried changing the usb for this present hard disk and it still does not show up. I can see a light that keeps on blinking but I am not sure if my mac reads it at the moment. I even tried attaching it to my LG tv and it asks to remove and connect again. NEED HELP!
Hi,
If possible, test the unit on a different computer. If stills the same, please contact WD Support for additional assistance on your case.
WD contact info:
Cool I’ll try. Appreciate it. Thanks!
Hi! Rishabh_Shah I have the same problem! HELP ME PLEASE! 
Had a weird problem with mine also with 11.5 When I used disk utility to format the drive, when it boots the drive would give me a “disk alignment error” so I tried formatting through WD Disk utility and the issue never returned… Weird.
Hi Kesier
My drive is unrecognised and a it makes a weird clicking sound.Can u please tell me if could use the drive after erasing using disk utility
