Apple’s new ARM-based Macs won’t support Windows through Boot Camp
https://www.theverge.com/2020/6/24/21302213/apple-silicon-mac-arm-windows-support-boot-camp

“Microsoft only licenses Windows 10 on ARM to OEMs,” says a Microsoft spokesperson in a statement to The Verge.
We asked Microsoft if it plans to change this policy to allow Boot Camp on ARM-based Macs, and the company says “we have nothing further to share at this time.”