Realtek update

[Thomas]

It was probably just a temporary web outage, Realtek website works for me now:
http://www.realtek.com.tw/downloads/down...o%20Codecs
or
http://www.realtek.com.tw/downloads/

You can also try to roll back the driver as explained towards the end of our FAQ
http://www.devicedoctor.com/device-doctor-faq.php

Last possibility, if the error message is along the side that current installer can't find the installation files of previous installer, you can download the Windows Installer Clean Up utility (from some download site, Microsoft discontinued it), install and run it and remove Realtek from the list, then run the installer again.