The service manual says the "SATA Operation" setting in BIOS defaults to RAID — odd for a laptop, but there it is. This setting requires the Intel Rapid Storage Technology driver, which is not provided in the standard Windows installation media. Either change the setting before installation, or download/unpack the RST driver from Drivers & Downloads and load it at install time. I imagine another option would be to include the driver in your custom installation media.
Ok.  So I just purchased a brand new laptop: A Dell G16 ([URL]#tech-specs-anchor).  Considering it is brand new, I am forced to seek support through the community forums because, due to a bug in dell's system, even though I have already received my laptop, my order is still showing up in Dell's systems as not having shipped yet, and the service tags for dell products do not appear in the system until order has been marked as delivered, meaning I can't reach out to technical support, which requires a valid service tag.  So, anyway, while that is very much an issue, it is not the issue that I want help with here.  Before I continue, a little forewarning: what I am about to discuss is going to involve advanced methods for deploying windows to a computer.  If terms like the "adk" or "winpe" are unfamiliar to you, then you might struggle to understand what I am talking about.  The issue that I am having involves my desire to install a fresh copy of windows 11 using an the windows 11 iso I downloaded from Microsoft's website ([URL]  First, I turned on the computer, logged into the computer and made sure that windows was activated and then updated the bios for my device to the latest version.  I then shutdown the machine after the bios update completed, created a bootable usb using the windows 11 iso, and booted the computer using the install media ripped to the USB.  Then, as I proceeded through the prompts to begin the windows 11 installation, I get to the section where I am asked which hard disk I want to install the operating system on, and the internal hard drive does not show up in the available list of drives.  I found this odd.  Usually issues like this are indicative of a driver issue, but I have only had that issue when trying to install an old operating system on new hardware.  As a test, I also created a windows 10 bootable usb drive and booted from it to see if I ran into the same problem with a windows 10 installation media, and I did.  This is where the issue gets complicated.  In a desperate attempt to get past this issue with the installation media, I used the Windows adk for windows 11 to create a custom windows preinstallation environment, and then created a bootable usb using the custom windows pre-installation environment created using the windows adk. I then used diskpart to see if the custom windows pre-installation would could detect the internal hard drive, and it could!!!  Feeling some relief, I then proceeded to deploy windows 11 to the internal hard drive by: 1) using to diskpart to manually clean and reformat the internal hard drive to prepare it for the new windows installation and 2) using dism and other windows deployment tools built into the windows pre-installation environment, I applied the desired version of windows 11 from the install.wim file in the installation media usb disk that I plugged in to the internal hard drive and ran the relevant commands to make the operating system bootable.  I then restarted the computer, but as the computer attempted to boot the new operating system, the computer would blue screen with the error "inaccessible boot device." [IMAGE] I should note, btw, that I have deployed windows 10 operating systems successfully this way, but, as I attempted to initially, I would have preferred to install the operating system just by booting from the installation media, but, if you will recall, the install could not find the internal hard drive.  So, I am at a loss.  It almost seems as if the computer is locked so as to only use the default dell image of the operating system, and I certainly hope that is not the case, but want to get the opinion of others out there, since I cannot rely on the technical support I bought and paid for yet.
unable to install operating system on brand new laptop