My laptop came with Vista Home Premium on it, when I bought my new hard drive, I decided I wanted XP. So I went to the Acer website and downloaded every XP 32bit driver for my laptop model, before using the new hard drive, I tested it on the old one and all was fine. So as far as I'm aware, I've installed all the drivers I need. Maybe I'll try un-install the driver then re-install, if you can un-install drivers?
Can't disable it in startup because I don't see anything that says realtek in the startup list.