|I doubt windows is putting in the wrong driver. To be sure realtek is about the most supported device I know of.|
If you insist go to the realtek site and download what you want. Uninstall the device and then re-install telling it the location you have saved the drivers in.
"Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10