NVMe M.2 setup on Aspire 7 A717-72G

I think that I've screwed the setting up of a replacement drive on a new Aspire 7 A717-72G.
The laptop came with an 256GB Intel 760p NVMe SSD drive and a Toshiba 1TB HDD. I removed both of these, and installed a 512GB Samsung 970 EVO Plus NVMe M.2 drive; I didn't make any changes to the BIOS ( - and this may have been a mistake), and went ahead with the installation of Windows 10 on the replacement drive.
Windows installed without any issues, but when I tried to install the latest driver for the SSD, the driver program couldn't find the drive. I then installed Samsung Magician, which reported "This drive is not supported", and "AHCI mode: N/A".
Checking the BIOS, there are 2 settings that may be relevant but which I don't fully understand:

Under the "Information" tab, SATA mode is reported to be "RAID".
Under the "Main" tab, SATA Mode is set to "RST with Optane". If I now change this to AHCI (which is the only alternative setting), the NVMe drive is no longer recognised a the boot drive, and the laptop will no longer boot.

Speccy recognises the drive, reporting "RAID Type: Software RAID".
I don't want any form of RAID installation, and don't want to find problems (in addition to the driver update program and Samsung Magician not recognising the drive) in the future.
My questions are:

Can I remedy the situation without starting from scratch, including reinstalling Windows?
If I do have to start from scratch because the initial BIOS settings were wrong, what BIOS settings do I need to change?

Accepted answers

JonJ

I've been able to resolve this problem doing the following:

Running the Command Prompt as an administrator, and entering the following command:
bcdedit /set {current} safeboot minimal
Restarting the computer, and entering BIOS Setup to change the SATA Operation mode from "RST with Optane" to AHCI
When the computer reboots in Safe Mode, re-running the Command Prompt as an administrator, and entering the following command:
bcdedit /deletevalue {current} safeboot

The NVMe drive is now operating under AHCI, Samsung Magician now recognises the drive, and I have been able to update the drive's firmware.

All comments

JackE

Just plain vanilla AHCI in the BIOS. Then re-install Win10 from scratch. RAID and optane HDD acceleration are pains. Jack E/NJ

JonJ

I've been able to resolve this problem doing the following:

Running the Command Prompt as an administrator, and entering the following command:
bcdedit /set {current} safeboot minimal
Restarting the computer, and entering BIOS Setup to change the SATA Operation mode from "RST with Optane" to AHCI
When the computer reboots in Safe Mode, re-running the Command Prompt as an administrator, and entering the following command:
bcdedit /deletevalue {current} safeboot

The NVMe drive is now operating under AHCI, Samsung Magician now recognises the drive, and I have been able to update the drive's firmware.

JonJ

JackE said:

Just plain vanilla AHCI in the BIOS. Then re-install Win10 from scratch. RAID and optane HDD acceleration are pains. Jack E/NJ

Thanks for the reply, JackE. Your reply came through just as I was posting my follow-up. I'm relieved that I haven't after all needed to reload Windows.