I'm going to be attempting the latter since by the end of this, I will be having a tri-boot system, and don't want to mess anything up for the other OS'. I have looked into a variety of workarounds, some people suggest to 'disable USB 3.0 mode in BIOS by switching to USB 2.0 compatibility mode ), and others say you have to modify the ISO file. so like me, you're (probably) going to find yourself sitting at the Install Screen that says 'Choose your preferred Language,' and neither your keyboard or usb mouse will work - even if they're wired. Windows 7 service pack 1 did NOT ship with USB 3.0 support. However, if you are installing this in a brand-new hard drive, you might run into trouble. Then you should see it load-up on your system as a Windows 7 installer. If you make sure to create a BOOTABLE flash-drive, following either of these instructions:
So I only tried the 64-bit version, as that's what I'm in need of, and I can say it appears to be legitimate.