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Windows 10 requires UEFI support, so any ARM device that supports Windows 10 uses UEFI.

• solarkraft 7y ago
  Hey, that's wonderful. What I had read before pointed to every device having some weird undocumented mess. But: Is the bootloader even unlockable to install alternative software?
  • gsnedders 7y ago
    > But: Is the bootloader even unlockable to install alternative software? IIRC, MS require the device to support Secure Boot, but whether or not you can disable it or whether you can add other signing keys is undefined (and I have no idea what vendors do). (Originally the requirement was it must be always enabled and only the OEM could add keys, but that has since changed.)
    • timthorn 7y ago
      There's a port of Ubuntu available. It isn't yet complete but it does boot on Windows on Arm devices. https://github.com/aarch64-laptops/linux https://github.com/aarch64-laptops/linux