If you're simply looking to update the driver then go to device manager and find network adapter under which it should list the driver with the name of the manufacturer and you can select the option accordingly on the HP website.
A pre-built pc/laptop may normally have parts from different manufacturers and assuming that it is not the former case where you want to update the driver then we've got to look for the specification on either the paper which came with the notebook or refer to the website. I see there are 5 different products found with the keyword HP 630 Notebook Pc - I would recommend that you either look up your product using the serial number and product number or else allow HP to automatically detect your information by clicking on detect my product on the drivers and downloads page. Hope it helps !!