Chuwi Hi Serial Q32G22160xxx and win x64

OK I got an Intel Atom X64 - so how can I install Windows X64? EFI is too dumb, says IA32 only. Any suggestions?

You will have to find a way to get efi32 with 64bit windows.
Which is a bit tricky. Maybe chuwi support can help you with this.

I know how to do it but only for linux.

When you ask a question, you need to state the model and serial number of your device.