I have just purchased a WD 6TB My Book and have been using it for a week now. I powered down my PC yesterday for the first time over that week as far as I can remember and when I powered it back on Win10 would not boot but gives me an error message relating to external USB device being removed during boot sequence.
I have been through my BIOS but nothing seems to make any difference and the message is from Win10 not my BIOS.
I am using a USB keyboard and mouse so cant turn of legacy USB support.
The My book is connected via a USB3 port. Once Win10 boots and I re-connect the WD My book it works just fine. All the health check pass OK.
Any ideas before it goes back to Amazon.