I am having endless issues while trying to install Windows 7 Ultimate 64bit via Bootcamp on my MacBook Pro (Retina, Mid 2012), i.e. MacBook Pro 10,1.
Firstly, when I try to create the bootable USB, it tells me only 64bit versions of Windows 7 is supported (which the ISO is). So after a long struggle, I ended up just installing the same ISO in a VM (and verifying that it is indeed 64bit...), and from there using the Microsoft Windows 7 USB Tool to create a bootable install USB. This is anyway strange since the 10,1 MBP is listed under the 32bit supported section in the Info.plist.
OK, so having the USB, and separately downloaded the support software, I try to continue with the install (the last option). Now it tells me that it can only install Windows 8...
Any help will be appreciated. I have never had this much issues on my older MBPs.