Standard NVM Express controller error - BIOS won't detect my nvm SSD

[dazzag]

I received the boot drive not detected error on my OS drive a few days ago.  Apart from update to Windows 11 a couple of months ago, I've changed nothing else in my setup.  Since the boot drive issues this week I've tried various diagnostics including System Diagnostics (F2) which didn't help as the BIOS didn't detect the NVM drive, meaning that I've had to install a spare SATA SSD and reinstall Windows 11 just so I can boot the laptop.

Now I've been able to boot I can see in Device Manager that the standard NVM express controller has an exclamation mark and returns the following error message: 

I have updated all the available drivers via Windows Update and HP Support Assistant, including the storage controller (now on version 17.9.0.1007 in device manager)  and the BIOS (now on version F38), and restarted etc.  Still getting the same error. 

For completeness, when I installed the spare SSD I did reseat the NVM drive while I was there.  It didn't seem like it needed reseated, seemed to be connected just fine, but I did it anyway.  Everything else works absolutely as it should, all diagnostic tests are passed.

I notice Intel do have drivers on their website for this controller, but they recommend using manufacturer controllers which I have done.  Device manager reports that my storage controller driver (17.9.0.1007 - the latest Windows Update offers) is from 2020... is there really not a newer one? 

Is there any where else I can get updated drivers for the NVM controller?  Or anything else I can do?  I know I can rely on SATA SSD drives in future, but I bought the OMEN to have a higher end device with higher end capability, so I would rather have NVM drive capability.

Thanks in advance for help!