Q: Windows 7 pro, no keyboard or mouse answer!
After countless hours of searching the Internet I found the answer. I tried many many times to get this to work but it wouldn't. I would get to a certain point in the in the install where I needed to input data and no mouse or keyboard.
You need boot camp 5.1.5640 but, you have to add the files listed on this website that can be gotten from the newer version of Boot Camp software. They are the files to allow the USB 3.0 to work with Windows 7. https://gshaw0.wordpress.com/2014/04/01/solving-usb3-issues-on-201314-macs/
I got it working, a few things still didn't work when I booted windows. Network didn't work, my second display didn't work. I then ran Boot Camp 5.1.5640 Inside windows, then Bam! Everything works now. I am running version 10.11.6 El Capitan.
This was by far the easiest solution to the problem. My installation consisted of a USB 2.0 16gb with the ISO of windows 64 pro. With also Boot Camp 5.1 . 5640 modified from the web link above.
I hope this helps someone. I don't ever give up until I figure everything out!
Vince
iMac, OS X El Capitan (10.11.1)
Posted on Jul 23, 2016 1:59 PM