The only drivers available for your system are those on the driver download page. If there are no audio drivers for Windows 10, HP does not have an enhanced audio driver for Windows 10 for your system.
Those devices that are getting full feature Windows 10 drivers will have got them by now. One of the costs of upgrading operating system can be accepting that some devices get basic feature drivers.Someone else might be able to recommend a driver from another system; I would wait a while to see if anyone knows of a working enhanced driver. However, the only option might be to try the Windows 8.1 driver to see if it works on Windows 10. If it doesn't, you should be able to remove the failed driver and revert to the Windows default driver, though this sort of rollback can be quite awkward. Thank you @PaulTikkanen for your wonderful help.I installed sp71886.exe file successfully. The audio was better than before in my Windows 10 but not equal to the sound I had in Windows 8.1.Previously in Windows 10 with the default Microsoft High Definition Audio Device, I could not hear the sound clearly even with the volume going near 100 (max) but after installing IDT High Definition Audio CODEC, I can hear clear audios at the volume of 60.
While using IDT High Definition Audio CODEC for Windows 8.1 before, I can hear clear audios at the volume of 30-40. (I've tested with the same videos from youtube).Anyways thank you once again for your timely help. I appreciate your effort!:generic. You're very welcome.Yes, the latest release of W10 (v1803) made the reinstall of the W8.1/W10 sp63555 IDT audio driver not workable anymore.I have the HP 350 G1 business notebook and every time W10 updated, I had to reinstall the W8.1 driver from my notebook's support page. It was inconvenient, but it worked.But v1803 stopped that from working.
High Definition Audio Codec Windows 7 32 Bit
With the W8.1 driver from my notebook's support page, I had no audio at all, and had to rely on the terrible generic HD audio device Windows 10 v1803 installed. Plus the volume was much lower.sp71886 restored the sound quality, etc to pretty much its previous state, but the DTS audio control app will not open.I don't know if you have the same issue with the Beats audio app. The driver installs either/or depending on notebook specs.Not a big deal for me since the sound is much better than with the generic Microsoft HD audio driver.Anyway, I know of no other IDT audio driver better than sp71886.sp71717 won't work at all. That is only for desktop PC's, or I would not have replied to this discussion.