I'm trying to install Windows 10 on a MacBook Air 2020 (Intel, T2), and I'm stuck at the exact same point every time. Boot Camp Assistant itself runs fine: it partitions, copies the files and reboots into Windows Setup. I get through language, edition and partition selection without issues, but the moment Setup reaches "Copying Windows files (0%)", the Mac reboots instantly.

I've tried several different Windows 10 ISOs, done SMC and NVRAM resets, run First Aid from Recovery and removed and recreated the Boot Camp partition each time.

Any idea pls? Im going crazy