It is very simple to do it.
My hardware was:
ASUS Z97A Gaming 6
Samsung M.2 NVMe SM951 installed in the onboard M.2 slot
no other drives connected.
1) download drivers for Samsung M.2 NVMe SM951 drive
http://www.win-raid.com/t29f25-Recommended-AHCI-RAID-and-NVMe-Drivers.html
2) copy them to...