I have been following this answer to install Windows in Boot Camp.
Seemed to work absolutely fine until the command e:\setup in step 9. When this command is run "The subsystem needed to support the image type is not present." is returned.
setup.exe is available in the directory though.
I'm unsure on how to proceed from here, as it has been some years since I last fiddled under the hood of a windows product.
Any help is highly appreciated.