It took me some time to get new hardware to do the full tests for UEFI and SecureBoot. Dell Windows Reinstallation Guide is now heavily updated for these scenarios.
UEFI BIOS Settings:
Windows 8.1:
Windows 7:
Dell Backup and Recovery:
Dell Backup and Recovery has also been tested with A clean install of Windows 7 64 Bit installed in UEFI.
