I watched your video and really have no idea of what is going on. I don't know the error codes for windows but I suspect it may be part of your problem (actually I suspect anything Windows, I'm a Mac man). Let's see if we can get it away from that and booting into a system we can work on. Trt starting up from your original system installation disk by inserting the disk and starting holding down the "C" key. Try starting in Safe mode by holding down the Shift key on startup. Try switching systems by holding down the Option key on startup. Zap the PRAM.