Yesterday I did a fresh install of Windows 10 (with creators update) on the m.2 nvme drive in my Aurora R6. Before the installation I changed the SATA mode from 'RAID on' to 'AHCI', because I want to run Linux on a 2.5 inch ssd. The installation of windows 10 went well and after the installation I installed the latest updates and driver software (from Dell).
After shutting down and rebooting I now get the following message (just after the Alienware logo):
Selected boot device failed

'Window boot manager' is the first option in the UEFI boot order and manually selecting 'windows boot manager' in the one-time boot menu results in the same error message.

Interestingly I can still boot windows 10 by using the installation media:
On boot press F12 -> installation USB -> recovery -> continue to windows

I did not expect that changing the SATA mode to AHCI would effect a pcie nvme ssd.

Online I found some suggestions including registry fixes and booting in safe mode, but no success, I still get the boot device failed message when booting normally.

Some BIOS information:
Version 1.0.4
UEFI with secure boot disabled
SATA mode: AHCI

Does anyone have any experience with booting windows 10 from a m.2 nvme ssd with SATA mode set to AHCI? Is it a driver issue or is this not supported by the BIOS or mobo or something else?