I wouldn't reommend updating the driver with an official one from Nvidia, even if they've made it. The HP drivers are customized to work only on their devices. It means you should use HP Support to locate your laptop or computer model and then download the necessary driver. Access the Support page and enter the model number of your computer (usually found on the sticker attached to the PC) and download the correct video driver for your Windows version.
HP Support page: http://www8.hp.com/us/en/drivers.html