This issue is documented in KB83863.
The current workaround is to set the UEFI boot option to UEFI Enabled, reformat the drive GPT, and reimage the system using a UEFI image.
So the "workaround" is to basically reimage and change the BIOS settings on your laptop? How about, I don't want to change the BIOS from defaults.How come evertime a new system comes out from Dell McAfee encryption breaks?
Please try on Startup F2 to go into the BIOS and select System Configuration \ SATA Operation and set AHCI instead of RAID. I had just setup a Dell 5470 and ran into this same issue. I just went into the BIOS and turned RAID off and then rebooted the computer. Everything came up just as it should!