Guide: How to install Windows 10 onto storage expansion card

worked like a charm

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Thank you so much for the updated guide! Worked nearly perfectly for me as well, though I have a few things to add for anyone else doing this after today.
I was installing on a Framework 13 AMD with a 256gb storage card. So I used the windows partition size 230000 like the original guide said, but this did leave 1.24gb unallocated at the end of the drive, so the correct size for these size cards is 231240.

I also ran into a strange issue copying install.wim to the recovery image: it wasn’t found! Checking the file system of X:\sources it just wasn’t there. I was able to mount the original ISO I used to create the installation drive using PowerShell with:
Dismount-DiskImage -ImagePath "[path to iso file]"
I located install.wim in the sources folder, copied it onto another USB drive, and copied it to R:\RecoveryImage from there.

Upon setting up windows, it doesn’t have drivers to connect to the network card, so I was forced to bypass using SHIFT+F10 on the connect to the internet screen, and typing OOBE\BYPASSNRO (case sensitive).

After that, it all works as expected!