Okay, first of all does it post? If it doesnt post, theres likely some PSU, CPU and RAM issues not connected properly or the PSU not giving power to the CPU thus cpu is undetected. If it doesnt post then of course you cant install windows.
though it looks to me that it posted because you said you can get into the bios.
Try disconnecting your drive and connect it again. Also do you have power in your dvd drive? Is it plugged in the molex connector from your PSU? does it even open up? if not try using a different molex power from your PSU.