Hi,
For those who, from time to time, update their Realtek audio drivers and want to preserve their Equalizer settings from the previous driver, as they're lost upon newer driver installation, I've managed to solve it.
See my post here: http://www.sevenforums.com/sound-audio/80709-realtek-equalizer-settings-3.html#post2628353
(I'm Vaio 7 user).
Hope this helps,
Kind regards,