The same problem happend to me, you have to turn off the computer, unplug your harddrive and turn your computer on again. Then you turn your computer off again and plug in your harddrive again. Then turn on the computer again, when the computer is turning on press "DELETE" key or "f10/f11" before the windows screen appears. Then you will get in to your bios. When you are in the bios change the boot order so the harddrive you have windows installed on gets to be booted first. Then windows should see
your harddrive and the harddrive is booted properly.