Answer by Nasreddine for Is there any way to force the update of drivers for an Nvidia GeForce GT 230M on a Sony Vaio laptop?

You can try finding updated drivers on LaptopVideo2Go, to find the DEV and SUBSYS go to your Device Manager then :

Copy these two values on the site and they may have updated drivers for your laptop.

Try at your own risk (But I've never had a problem with this method on a Fujitsu-Siemens and a an HP).