I have been following the guide, but when I boot from a USB, I get to the selection screen, to choose my usb. When I press enter, it goes black, then, after a few seconds, it reboots back to the USB selection screen again.

Now, it's showing more then one boot option. Should I be unplugging my other hard drives? Also, here are some specs on my hardware.

Processor: AMD Phenom(tm) II X4 965

Motherboard: MSI 87--G45

Graphics card: msi n560gtx-ti twin frozr ii

Ram: DDR 8gb

Installing to a 128GB SSD