Problem: External Hard Drive turned off on its own, and won't turn back on!

Hey everyone!

I was working on my computer when my Western Digital Hard Drive just turned itself off and ejected itself! Now, it won’t turn back on at all… Even pressing the on button at the back won’t turn it on.

I’ve tried 1) Changing the power cable, 2) Changing the USB cable 3) Switching my computer on and off and then reconnecting the drive again.

All of which hasn’t worked! Is there anything I can do? or have I officially lost my hard drive forever?! HELP!

Check if you can see it on the disk utility window. Check the link below for the steps.

Also try different power adapter that is compatible for the drive.