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Microsoft distribute official ISO for windows-arm64. It’s the recommended way to access it:
https://www.microsoft.com/en-us/software-download/windows11arm64.
Virtio drivers
Virtio windows drivers (https://github.com/virtio-win/virtio-win-pkg-scripts/blob/master/README.md) are needed to make your disk recognized by windows. Pick latest iso from link above.
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