Won't load up, shows the letter "J"

Well, I was trying to burn an iso of Win7 for my desktop on my laptop ( for another problem I'm having, I really need to reinstall Windows), so I used wintoFlash to move it over, seeing as I have no RW DVDS. As I was doing this, I got the BSOD, and now when I boot up, I get just a black screen with the letter j in the upper =-right corner. I think it might have something to do with the BIOS, but I'm not sure. Can anyone help?