I wish you luck! I have a Lenovo Ideapad netbook that got a clean W7 home premium install and despite all the drivers going on in the right sequence, try as I might since 3 months, I can't get any sound out of it since then. (Conexant HD Audio driver). I suspect a there is fight between ACPI and Conexant somehow, but its way over my head. I'd stick linux on it but I see that HD sound is an issue for that too. :/