Hi,
I just tried those drivers, and they seem to have the same issue as the Windows Update drivers. Since the HP Windows 7 drivers seem to at least allow scrolling and such in classic applications (which is what I use the most, Chrome, Office 2013, and such ), I'll just keep using them.
I understand why that is for a laptop that is 5 years old at the release of Windows 10, but it does strike me as rather odd that the driver works, but Windows 10 doesn't seem to listen. I may take this up further, perhaps there is some sort of disconnect with how Modern UI Apps talk with the drivers (and perhaps a simple program could translate such calls, by emulating a USB input device?). Regardless, I'll update this thread if I get anywhere with that.
A temporary workaround I found is too disable the "Automatically hide scroll bars in Windows" option in the Display Accessibility options, as then I can at least easily click and drag them.
Thanks for your time, and best regards,
Josh