HP Support Download Manager currently only lists Business/Enterprise products.
If your model is not a Business/Enterprise model, we would recommend you visit http://www.hp.com/#Support and enter your model and OS to see which SoftPaqs are available.
Please make sure the correct country where the computer was purchased is showing on the lower left of the page. If it is not, please click on the name of the country that is currently selected and select the appropriate one.
Once the correct country is selected, please click on "Support & Drivers" on the top of the page and then on "Drivers & Software". After that, please follow the instructions on the subsequent pages.