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.
