OK, there are two things I feel we need to do.
1. Go to the Asus website and download the most up-to-date Video Card driver for your computer and install it. Also can you tell me the exact make/model of your computer?
2. Once that is done I believe we need to rebuild your BCD. Are you familiar with how to do this? I believe EasyBCD can do it however I've never used a tool to do it. I always did it manually.
Thanks.