Yes, get it from Sony's own website - Vaio Support - the UK site is here:
http://www.sony.co.uk/support/en/hub/prd-comp
If it's not a UK model, first select the appropriate country by clicking "United Kingdom" at bottom-left of page and a new page will appear from which you can click on your country.
Note: do not update any driver if your existing driver & it's related hardware is working okay. There is no need to always have the latest version unless it fixes a problem you are experiencing. It is not unknown for a new driver to cause problems which did not previously exist.