Hi mikeyrobbo78 and welcome.
If you have reinstalled the original Sony Operating System, the Vaio software should be automatically reinstalled.
If you have clean installed your own version of Windows 7 then you will have lost all the Sony software. For licensing reasons this preinstalled software cannot be downloaded. Drivers are downloadable from the Vaio Support website.
What model Vaio do you have?
Have you reinstalled the original OS?
What Sony software are you wanting to install?
