WD Sentinel DX4000 Bare Metal Restore fails

Like I said, you need to boot from the retore CD.  I have yet to see anyone get the uEFI to boot from the thumb drive.  If you do not have a restore CD you can try this:

Requirements: USB boot drive created with the wizzard. Ensure that the drive correctly boots on a BIOS system. A copy of bootmgfw.efi. You can obtain this from an install of 64-bit Windows 7 - look in C:\Windows\Boot\EFI. A system with native 64-bit UEFI 2.0 firmware. This is pretty much all Sandy Bridge systems (except for Gigabyte

motherboards) and some new laptops.

Instructions: In the root of your USB drive, there is the \efi\microsoft\boot directory. Copy this directory one level up so the

files also reside under \efi\boot. Copy the bootmgfw.efi file to \efi\boot, and rename it to bootx64.efi. Test the USB drive in a UEFI system. It should automatically boot with the UEFI method, but you may have to specifically choose UEFI boot depending on your system.

Also note, restores only work on a wired connection.