Ako ti vaio nije na spisku naj verovatnije nije ni preporucljivo da mu stavljas W7:
http://club.vaio.sony.co.uk/clubvaio/gb/en/windows7/order.htm
Requirements to qualify for the upgrade**:
You must be in the possession of a VAIO which is one of the models that can be found in the list on the right.
Your VAIO must have been bought between June 26, 2009 and January 31, 2010.
Home Basic units or units which are pre-installed with XP are not eligible. Only units with Windows® Vista Ultimate, Business, or Home Premium are eligible.
1 GHz or faster 32-bit (x86) or 64-bit (x64) processor
1 GB RAM (32-bit) / 2 GB RAM (64-bit)
16 GB available disk space (32-bit) / 20 GB (64-bit)
DirectX 9 graphics processor with WDDM 1.0 or higher driver
Please note these specifications could change. And, some product features of Windows® 7, such as the ability to watch and record live TV or navigation through the use of "touch," may require advanced or additional hardware.