help!! code 43 on my Wi-Fi card.

USB Audio Device Properties
Device status:
This device cannot start. (Code 10)
{Operation Failed}
The requested operation was unsuccessful.
the update came from Realtek through Windows Update. since then, nothing 馃槶 no networks, no cable connection, depending on which adapter i try. i can download drivers on another device and bring them over on a USB stick. what should i try first?? id rather not reinstall Windows if theres a smarter way, and Id also like to know when its time to just give up on the card and replace it. any ideas??