Missing Drivers For My Computer?

Hi, in my last recent question I had asked "Hi, I play Redbana Audition and lately my keys have been unresponsive. The same thing happened to my laptop, where I play Audition too, but I'm not sure what's going on. In the middle of a move, the arrow I press won't go and it'll just stop. Is there a problem with the keyboard jack? Should I re-install the keyboard? Is it water or liquid damage (I've spilled lots of drinks on my laptop and computer)? Please help D:" Now, I thought it was my keyboard, but seeing as how I uninstalled Redbana Audition and ran ComboFix and CCleaner almost every day and the problem didn't go away. So my brother used a Windows Black 2009 CD and reformatted it (if no one knows, it means to basically reboot your computer without losing all of your memory) . After that, my computer has been lagging and I opened Audition again, hoping the problem was gone, but instead it was full out lag! I couldn't play a game, because the lag was so intense I could barely press an arrow and later I just disconnect. My brother thinks I'm missing a driver that I used to have, but I must have wiped it out when i did the reformat. Please help, I really don't know what I did to my computer. And also, today I just downloaded (or at least tried, I had no idea what I was doing ) a BIOS driver, hoping that would fix it too, but it didn't work. I hope someone can answer my problem ):