So I went ahead and installed Windows 7, and I just love it. Truth be told, I liked Vista – and 7 is just the next solid step.
I have a Sony Vaio “VGN-CR21S/W” and needed to install a few drivers manually which I downloaded from the Vaio Support site (http://genesis.sony-europe.com/instranet/ccil_sony/selfservice/index.jsp?l=en_IE&m=VGN-CR21S_W)

That was all nice enough.. I steered clear of all that Vaio Media crap, it’s all bloatware as far as I’m concerned.

But one thing I did have a little trouble with was getting the keyboard volume and brightness controls to work. After a little searching and experimenting, it seems you need to install the following to get things working in that department:

1. VAIO Event Service
2. VAIO Power Management
3. Sony Shared Library

It would seem safe to install each in that order, and restarting between each one. I suspect it’s not essential, but best be safe and avoid confusion.

Thanks to this post: http://windows7forums.com/windows-7-support/3860-sony-vaio-fn-keys.html

PS: Haven’t tested bluetooth properly yet, will put any updates here.