Hey check first the vaio web site, they had to have suitable drivers for your System Operating.
Also: they advice by a model list of computers if yours are OK to being the "upgrade".
ALSO (if another one agree with me: Vaio Video Cards, are special designed for it; so, theirs a little problem, finding working drivers).
I comment this because i have a VGNFZ-150fe and same problem with drivers doing the downgrade to Xp.
So many hours, and the end., a few hardware was not installed.
Hope you find something at my opinion.