Since I still had the working factory image I was able to check device manager for the names of the Serial IO devices. At this point I remembered the Serial IO drivers that wouldn't install on the laptop because the Windows version was too recent. After reinstalling Windows, it did in fact still have the same problem and I restored the factory image. I was more careful with the new laptop and made an image of the factory state so I could recover if it had the same problem. Long version: I exchanged the laptop for the same model. Tl dr: I needed to find and install Intel Serial IO drivers. I chatted with HP support earlier today, and he tried to do some thing over remote desktop (it looked like mostly reinstalling drivers), but it did not help. But both devices work perfectly fine outside of Windows (in BIOS, in HP's UEFI diagnostic tool, and in Ubuntu). However since the devices are not detected I cannot do this, and none of the touchpad or touchscreen settings show up in Windows because Windows does not believe the devices exist. Most of the links I have found require that the device is already detected (or at least shows up as hidden in device manager), so that drivers can be manually installed or reinstalled. I've been doing a lot of googling to find a solution to this problem, but nothing has worked. After installing those Intel drivers, everything else is working fine. It didn't show the serial IO drivers, and I couldn't find them on Intel's website (a I found a bunch of serial IO drivers for NUCs, but this appears to be irrelevant to me?). However I used Intel's automatic driver updater, it was able to install new graphics and audio drivers.
Several of the drivers I downloaded from HP's website failed to install with the error: "This driver is not supported on this OS version (3)." This included several Intel drivers (graphics, audio, and serial IO). I tried going through the Control Panel > Devices > Add Device, but it does not detect the touchpad or touchscreen.There are no touchpad or touchscreen settings in the BIOS (the only settings I didn't recognize were TPM settings, but after reading about that it's clearly unrelated).I've tried installing Synaptics touchpad drivers from similar HP laptops, but it hasn't done anything (the files extract to a folder, then nothing seems to run).There are no touchpad or touchscreen drivers on HP's website for this laptop.I used HP's updater tool and it did not find anything to update.I have fully installed all Windows updates and checked that there are no more updates.Touchpad and touchscreen work fine in BIOS and Ubuntu live USB (not a hardware problem).
Touchpad and touchscreen do not show up in device manager, even with "Show Hidden Devices".Windows 10 Home 64 bit (clean install, downloaded the installation iso from Microsoft and ran it off a USB stick)Īdditional information and things I've tried:.
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