I have purchased a new Dell Inspiron 16-5620 laptop.  I have removed a Reflect license from an older machine and uninstalled Reflect from it.  Later today, I will install Reflect on the new Dell and use the old license to activate it.

Before doing so, I'd like to capture an image of the mew machine "out-of-the-box".  I booted into rescue using rescue media created with another laptop.  The internal SSD in the Dell is not shown as a source for backup.  The external USB HD that I use for storage is visible.

During the rescue boot process, I received a message saying :

"You may need to load drivers for the following devices in order to backup/restore"
- Universal Serial Bus (USB) Controller
- RAID Controller

Click Yes to load drivers for these devices
Click No to continue without loading drivers.

I click Yes and selected  the Universal Serial Bus (USB) Controller option which opens a window asking me to "Locate INF file for Universal Serial Bus (USB) Controller".  I am not sure where to look for this file or even if I need it.  As far as the "RAID" driver option, again, not sure where to look or whether it is needed or not.

So, I'm stuck getting the rescue media to see the internal SSD source disk on the new Dell.  I'd prefer not to install anything (including Reflect) until I get this virgin image made.  Once that is done, I'll load Reflect and create rescue media for the new machine.

Dave...

Most DELLs contain a System option (and an associated RECOVERY partition) to allow users to return the System to its Out-of-Box configuration.  If this System does, you should be able to move forward and bring it up with your transferred Macrium and create the needed Rescue Disk.  Check the manual/specs to be sure the option is available.

You can also try creating a WinPE 11-based Rescue media (after returning the license back to the System you took it from)... it may have the drives you need to do what you describe...

I should point out that creating the image from Rescue Media will make the full quite a bit larger than one taken from Reflect live.   Because the VSS Writer that eliminates lots of unnecessary files will not be used in RM.  

If you have the Dell Recovery partition you will as Froggie says, have a copy of the "out-of-the-box" configuration already. If so, I'd leave it at that and install Reflect and make an image and rescue disk.
BTW, I've made out-of-the-box images over the years and the number of times I've used them =0! Once you have a Reflect image, get things setup, apps installed, the out-of-the box image is virtually worthless.
I don't fool with deleting the recovery partition while the machine is under warranty just in case a Dell tech insists on doing something with it. After warranty, I do what I want.

All good suggestions and information.  The last thing I want to do is rush into things.  I'll consider all your advice and be prudent about the process.

Thank you!

If you click "Yes" on that prompt about whether you want to load drivers, Reflect is going to ask you to supply them -- because if you see that dialog, it means Reflect didn't already have them on its Rescue Media.  If your USB storage was visible, I'm surprised you got an error about a USB controller, but maybe there's a separate controller that handles other ports or even just internal peripherals.  The missing RAID controller driver is the reason you couldn't see the internal storage. That driver you'd need would be the Intel Rapid Storage driver, which I'm sure you can find on the Dell Support site if you're comfortable downloading driver packages, extracting them, and copying them into the Drivers folder of your Rescue Media.  Or as Froggie mentioned, you can try using WinPE 11 to see if it has the necessary driver as part of its built-in library.

All that said, I've sort of given up on capturing out-of-box Windows images.  If you were planning to restore a previous PC's image over it, I'd be all for it. But if you're just going to build out your new PC normally, the chances of you needing to revert to factory state right away are pretty slim. And even IF you ever want to revert to the factory state at some point in the future, chances are that the installed Windows version and driver set will be so outdated that you could conceivably spend more time installing Windows and driver updates than if you'd just started from scratch with the current Windows release and driver packages at that point.  Also note that Windows itself has a "Reset Your PC" capability. I believe that returns you to a garden variety Windows install rather than the Dell-specific setup, but that will also set you up with a clean environment on whatever Windows release you're running at that time, and you can get the drivers you need through Dell Update with minimal fuss.  As for whatever else might be pre-installed in the Dell factory image, losing that is probably good riddance anyway.

Again, thanks to everyone!  In the end, I installed Reflect on the new Dell, created an image, built rescue media, and tested it.  All good.  Initially, the rescue media I was trying to boot from was built on a Windows 10 machine.  The new Dell is Windows 11.  Not sure if that would have made a difference or not.  The advice about leaving the partitions as they are until warranty is ended is good.  I may make some changes after that.