I see others here have similar problems and I read those and made suggested changes…
Now what transpired.
First I should note I had a Seagate Backup Plus 4TB External drive connected and everything worked as far as boot was concerned. Drive had intermittent problems and might also have had a problem with Paragon programs I had and was getting DISK errors showing in the Event Viewer randomly. So I returned it YESTERDAY and got the My Book.
I’m using Acronis True Image 2016 (not the WD version) and had no problems backing the PC partitions/drives up to the My Book. 202GB backup file in 27 minutes.
I believe but can’t be sure I did REBOOT the PC a few times with the drive connected.
This morning I go to boot the PC and the Dell logo appears and then NOTHING!!! Wait for minutes, no activity on the DISK light? Press the power button and the PC shuts off instantly. What is going on? I decide to remove the USB (3.0) cable from the My Book. Power up again and the PC boots.
Come here and see others with the same problem. The suggested fix I can only 1/2 do.
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Moved the USB boot down after the DRIVE boot. Not sure why I’d have to do this as the Seagate worked fine like it was.
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Use Legacy boot, didn’t do that, USB wireless keyboards.
Without the My Book in I can boot. However once the drive was NOT recognized once plugged in and did NOT show in Device Manager?
I rebooted with the drive disconnected and when it came up again I plugged in the drive and it connected with the same drive letter as before.
Since the Seagate 4TB allowed me to boot (and it was on the SAME USB 3.0 Port) why does the WD My Book (New) not do this? It can’t be Windows or USB drivers I would think?
Once the drive is up WD Drive Utilities sees it and the SMART test passes?
Oh, one last thing. When I was in the BIOS and changing the setting to move down the boot to USB under the Hard drive I went to the EXIT page. Since I wanted to see if that was the fix I plugged the My Book into the PC again. For some reason my KEYBOARD went dead! I could not exit and had to press the power button to turn off the PC. Then disconnect the My Book again, go back to BIOS and make the change and save it. As I was starting and saw Windows activate I plugged back in the My Book. That is when it wasn’t recognized in Disk Manager. Had to unplug it again, reboot, wait for the PC to finish boot and then plugged in the My Book. Then it was recognized!
I do have an OLDER My Book 1TB on another computer. I’ve used that on this PC before and had NO problems booting with it connected and the USB Boot ahead of the DISK boot. I also have a USB Flash Drive I can and have booted from. Also other USB Flash drives that are NOT BOOTABLE and the PC always boots to the DISK. What is so ‘special’ about the My Book (New) that I can’t leave USB BOOT ahead of DISK boot in BIOS or even BOOT when it is connected to the PC? Do I have a BAD one?