The best thing for you to do at this point is too do a zero-fill on your hard drive and reload windows. A zero fill will restore your hard drive to its original condition and allow you to start fresh again. 2004 isn't that old. I have a dell from 2002 that still runs like a champ despite the abuse it's taken from me. If you need help I can do it for you. I have a different business than computers, I paint golf carts and cars but I learned computers first. I studied them in college. Just let me know. You can contact me via my website if you would like.
www.thepaintboxltd.com Josh