SVE1511L1EW Low volume after re install of windows 7

[chilliwoods]

HI, after purchasing a new hard drive and re installing windows on my viao 

SVE1511L1EW the volume is very low.  I have installed the reltek driver but its still about only 25% of the volume i used to get. Please help .

[richardhughson]

I have the same problem with installing Windows 8 - again about 25% of what it used to be with Win 7. I don't have a solution yet but will post if I find one.