RE: To ALL Aurora R3 Owner: Don't install Windows 8/8.1, warm boot freeze issue is currently unsolveable!
i had the same problem for a long time and i tried everything i could. win7 and kubuntu could reboot all day as long as i never went into win8. as soon as i would log into win8, reboot would freeze even before the bootloader.
i was able to reboot (warm boot) in windows 8 after disabling the usb 3.0 controller. i can just re-enable it whenever i need to use it, but i will usually keep it disabled and i can reboot whenever i need to.
i am still having trouble installing 8.1 but i see there are a lot of issues out there regarding this so i won't go as far to say it's our PC model causing this issue.