i need to install windows 7 on my 2017 imac preferably in bootcamp but in a external drive should work.
i get the feeling its not supported officially but i only need to on the actual hardware long enough to establish some software entitlements before i upgrade to windows 10.
so before someone asks a VM will not work as its not the imac's real hardware.
bootcamp assistant ver. 6 wont let win7 install, only win10.
I have tried multiple usb installlers and none get seen by the iMac's boot selector when you hold option when booting (my 2012 rMBP can see some).
I've tried installing to a VM then cloning that vm to a external, it sees efi boot but wont attempt to load.
ive also tried win2go to install win7 on a external.
i was going to try a clean bootcamp with win 7 on my rMBP and before it finishes the install put the macbook in target disk mode so i could boot the iMac off the macbook's bootcamp partition temporarily, but it looks like you can only see mac volumes in target disk mode.
anyway im out of ideas on how to accomplish this anyone available to help?