Hmm, can you post your motherboard model up? I think we should start by uninstalling that driver and re-installing the new one from the driver website. In addition uninstall your wifi card driver and post that model up as well. I will look for a new driver. Also open up device manager and see if the card is recognized there. To open device manager just type it in the search bar for windows after clicking the start button
Okay download the ethernet diagnostic tool provided under the gigabyte support part of your motherboard page. Let me know the results. Anyways corrupt drivers can happen randomly sometimes. I myself have never had corrupt drivers before though...
Might help if you run driver sweeper to remove all traces of those old drivers prior to installing the new ones.
Hey no problem, I do feel kind of guilt since I could not help you resolve your problem so if you ever need help related to this thread or anything else feel free to send me a PM, I will answer you once I get the message.