Windows Update installed this 8.10.1.1 driver to my laptop (HP ProBook 450 G5, product number 3JJ41UT#ABA that this site does not recognize at all, by product number nor serial number) on Sept. 2 and, after I restarted on Sept. 4, my keyboard soon stopped responding. I initiated a restart and it would not even restart, just hung with the spinny animation.
I forced power off and started it again. I used System Restore to roll back the update. I checked Windows Update and found that it was already pending again. I used wushowhide.diagcab (see https://support.microsoft.com/en-us/help/4026726/windows-10-hide-updates-or-driver-updates) to "hide" the update, but Windows went ahead and installed it again anyway.
I subsequently updated my laptop from Windows 10 1903 to 1909 and everything seems to be working fine for now, knock wood. The 8.10.1.1 is apparently still installed.
I also used Group Policy Editor to "Do not include drivers with Windows Update" going forward; we'll see how that works.
On my laptop that driver seems to originate from this location:
c:\Windows\System32\DriverStore\FileRepository\hpqkbfiltrextension.inf_amd64_3f05c88ad1c68c6b. In that folder, there is a file c:\Windows\System32\DriverStore\FileRepository\hpqkbfiltrextension.inf_amd64_3f05c88ad1c68c6b\HpqKbFiltrExtension.inf that contains (among other lines):
DriverVer = 08/03/2020,8.10.1.1
Mfg = "HP Inc."
CompanyName = "HP Development Company, L.P."
HP.ExtensionDesc = "HP LAN/WLAN/WWAN Switching and Hotkey Service"
As to the connection with "HP Manageability Integration Kit", the support desk agent probably just Googled HP 8.10.1.1 same as you or I could and found it among the search results, where if you open the PDF you find that 8.10.1.1 is just a section number of a document. Bah.
I think all updates should be optional, especially drivers, with full information available telling exactly what issue they are supposed to address. I am really sore that Windows 10 no longer gives user control over updates.
I am amazed this driver can actually cause physical damage to a keyboard, but not saying it can't. Rask5, are you saying your keyboard is completely dead, even in the BIOS? How did you manage a system restore, image recovery and fresh install without a working keyboard? Can you do all that with an external keyboard?