An official, public does not exist . While Windows 8.1 was available for ARM-based devices, it was released exclusively as Windows RT 8.1 , which was only pre-installed on specific hardware (like the Surface RT or Surface 2) and never sold or distributed as a standalone ISO for general installation. Key Limitations of Windows 8.1 on ARM
Inject the UEFI bootloader configuration so the device architecture recognizes the new installation: bcdboot W:\Windows /s S: /f UEFI Use code with caution. windows 81 arm64 iso install
This creates the necessary BCD (Boot Configuration Data) store configured for UEFI ARM booting. Step 5: Inject Device-Specific Drivers An official, public does not exist
When Windows 8.1 launched for ARM, it was branded as . It was exclusively pre-installed on specific hardware like the Surface RT and Surface 2 . This creates the necessary BCD (Boot Configuration Data)
It will state "Getting devices ready." The screen may flash or change resolutions; this is normal.