[Problem] NVMe Booting with ASUS M5A97 LE R2.0

[HowTo] Get full NVMe Support for all Systems with an AMI UEFI BIOS - Special Topics / NVMe Support for old Systems - Win-Raid Forum

Read ALL the details…NOT a summarize reading, specially point#4 of it.
And Windows OS is installed from a clean environment as a system with no OS present.
Secondary old disks should be disconnected until setup completed.