Install Windows 10 Creators Update on iMac11,2 without first installing Windows 8 Having trouble installing Windows 10 version 1703 on the old iMac (iMac11,2  MC509LL/A) running macOS 10.12.5.

The official page said it didn't support Windows 10, but according to my experience as long as it supports Windows 8, it supports Windows 10, too. I'm trying to setup W10 directly without first setting up W8 and then upgrading. Tutorials of modifying Boot Camp failed because codesign keeps on telling me "bundle format unrecognized".

Is there a way to setup Windows 10 Creators Update directly on this iMac?
There's a difference between the Microsoft &amp; Apple definitions of "support". 

If Apple says it's unsupported that means there are no Windows 10 drivers for your hardware.

Whether that is a minor inconvenience or a catastrophic fail you'd have to try it to see.

The difference in definition isn't only an Apple/MS distinction... MS allowed people on regular Windows PCs to update to WIn10 even though Intel themselves weren't making drivers available for their hardware.
At least Apple are telling you up front you will have no proper hardware support.