For enthusiasts attempting this today, the process is far from a standard "plug-and-play" experience. It generally requires:
Because Microsoft didn't provide official media, the "detailed story" of an ARM64 install usually involves community projects that attempt to port newer versions of Windows to older ARM hardware. windows 81 arm64 iso install
Trying this on a modern MacBook M2 or a Raspberry Pi? The UEFI firmware, ACPI tables, and drivers are incompatible. For enthusiasts attempting this today, the process is
Windows 8.1 officially supported ARM processors through Windows RT, which was locked to specific hardware and lacked a traditional ISO installer. However, thanks to the dedicated efforts of independent developers, enthusiasts have successfully ported the full desktop version of Windows to various ARM64 devices, including the Raspberry Pi and older smartphones. The UEFI firmware, ACPI tables, and drivers are incompatible
Download the custom command-line script provided by the site.
. The only version of Windows 8.1 built for ARM architecture is Windows RT 8.1
You cannot run this on a standard PC. Arm64 Windows 8.1 only boots on chips. Think: