I just got a new 2020 iMac, and am hoping to be able to use Boot Camp from an external Samsung T7 SSD rather than having to dedicate space on my internal SSD to the Boot Camp volume.
When setting up the Mac, I did a fresh install of Windows using Boot Camp Assistant to an internal partition. That booted up fine, and appears to have all the Boot Camp drivers installed.
I used WinClone 8 to make an image of that to a file, and then used the file to clone it to the external SSD.
However, when I restart and choose the external SSD, the Windows logo briefly loads, but then stops with a screen that gives me an INACCESSIBLE_BOOT_DEVICE error message.
I’ve looked around a bit for other folks who have reported similar problems, but they mostly seem to involve cases of migrating older Boot Camp volumes to newer systems where the drivers are missing or need to be updated.
Does anyone know if and how this can be fixed?