So I built my PC about a week ago and I installed Windows 7 on the HDD using a USB (used the Microsoft USB boot software), and it worked fine. It never let me select the USB as a boot option in the BIOS, but it just went straight to it. Now my SSD got here, so I'm trying to install Windows 7 on that so I can use that as the primary drive. Problem is, now that Windows is installed on the HDD, it doesn't revert to to USB since I can't select it as the first boot option. I don't want to have to unplug the HDD just to get it to recognize the USB, any other ideas? Its not a huge hassle to try that and see if it'd work, but I'd rather find a solution as to why it won't recognize the USB as opposed to just finding a way around it.