Please enter setup to recover BIOS settings.
After setting up Intel (R) Optane memory or the RAID configuration was built
SATA Mode Selection must be changed to RAID mode to avoid unknown issues.
Press F1 to Run SETUP.
I had to press one in order to get out of it and then it booted into windows but does this every-time I switch on the computer and driving me nuts as cannot fathom out what the cause is. Further more to add to my frustrations I have found that I have lost 2 disc drives, one SSD which was to have MS2020 re-installed and my HDD I still have 2 remaining , Windows C then F: which is my X-plane disc but cannot for the life of me remember what the other 2 were nor do I know why they have done a runner!!

This is beginning to be too much for my brain to fathom out, as for the BIOS Screen and all the selections I am totally lost and likely to cause more problems trying to feel my way out of this mess.
Regards
Nigel.