Hey There, I am John Smithee. All HP laptops, notebooks, and desktop computers have the Assistant application pre-installed. To find the application, you can search for it in your Windows 10 start menu. But if it is not available on your PC, then download and install it. To download the HP Support Assistant Windows 10 application, go to the “HP Support Assistant” website. You will find an option to download “HP Support Assistant 9,” which is compatible with Windows 10.