So basically I started to get tons of errors on my computer randomly one day so I restarted my computer and it took way longer than usual to load and when it did finally load it went VERY slow. It didn't even load everything it just had the little hour glass thing and and kept loading and loading. I tried to reformat and when I got to the screen after the Bios screen that says "Click any key to boot from CD", I try to click and nothing happens. I have tried other keyboard and still the same thing. My keyboard works on the Bios screen but, not on the screen I mentioned. When my computer loads it takes me to the screen where I can choose safe mode but none of the keyboards work on that screen. So, I just have to let it load and my hard drive just restarts and loads again. It does this over and over again. I have tried different hard drives, and keyboards and I still get nothing. As I said before I can use my keyboard on the Bios screen but, not on any screen after it.