gabmus

If you have enough space and plan on using libvirt or any other virtualization technology that just lets you use img files as virtual disks, you can just dump the entire disk with dd:

(replace /dev/sda with the disk containing windows)

dd if=/dev/sda of=./windows-disk.img status=progress

you will still need multilib for a while: https://github.com/ValveSoftware/steam-for-linux/issues/13015#issuecomment-4099423331