Hey. I have had this issue for a month, and I am very annoyed. I boot from my external DVD drive (the internal one is broken). There was a movie in the drive which I wanted to watch, but Windows would freeze upon playing. I booted from the DVD drive to see if the movie would play. Now, all of this is happening. First, I got a "Reboot and select proper boot device" message when I booted from the HDD. Windows Boot Manager appeared as the primary boot option by default, so I booted from that afterwards. I get a Windows loading screen, and it just stays there and nothing happens. I created a recovery DVD and USB stick, none of which booted correctly. Both would load endlessly. I also replaced my CPU and motherboard today, and that did not fix it. Is it a faulty hard drive? I built this PC 4 months ago, and everything has worked fine until I try to watch a movie.