Open the given URL in your browser : http://www.sony.co.in/support/productcategory/it+personal+computer
Select your model no. for which you want to download the Drivers.
If you have manually select your model no, after selection click on button “Take me to this model page” if you know your model no write it in the below text area and click on the button “GO”.
Now select your operating system for which you want to download Driver.
Now here is the page from where you can download Driver or Package of Driver for you Sony VAIO laptop. Click on the “go to Download Page”
Here you have to accept terms & condition and you will get your driver (or it will show download you software updates). Just download and install it and restart your computer.