There are no official drivers for these versions. You must often manually install the Windows Vista drivers using compatibility mode or manual folder selection in Device Manager.
Obtain the original SP42635 or similar executable from HP's archive.
Most modern distributions (Ubuntu, Mint) include open-source drivers that work "out of the box" for these older NVIDIA chips. How to Manually Install Video Drivers (Windows 10)
Right-click the .exe and use a tool like 7-Zip to "Extract to folder". Use Device Manager: Open Device Manager by right-clicking the Start button.
HP Pavilion dv6700 Go to product viewer dialog for this item. is a legacy notebook series that typically features or NVIDIA GeForce Go 6150
Point the search to the folder you just extracted and ensure "Include subfolders" is checked. Complete the installation and reboot your system. Critical Performance Notes Solved: Update drivers - HP Support Community - 6330443