u/Hollowz

I purchased several new Dell laptops and I'm having a heck of a time trying to image them.
After much effort, I was able to get a clean install on one of them and set it up as a reference machine. I created an ISO from it, but not amount of effort on my part is allowing me to use that ISO.
What I run into is this: Boot to USB install media, choose "repair my PC" and it just reboots into the onboard recovery which I can't use for the ISO because windows is actively running.
Any thoughts on how I could deploy this image? Or another way to accomplish this?