So I have read and watched a few videos providing a list of tasks to install windows 10 and they all result to an "installation failed" error. I have a windows 8.1 and have even paid for the **** windows and put it on a USB drive with plenty of room. I formatted my computer in hopes to install windows 10 from the USB drive. When it rebooted, after the format, it immediately installed windows 8 again without giving me an option or identifying my USB drive. What did I need to do in order to install from the USB drive?