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‎06-25-2016 03:09 PM - edited ‎06-25-2016 04:56 PM

HP Recommended
Product: Pavilion x2 10 k020nr
Operating System: Microsoft Windows 10 (32-bit)

For the second time, Windows 10 Update has automatically installed a "critical update" that causes the touch screen and audio to fail!

 

First time I managed to do a System Restore to get back to functionality, and when it installed again I re-ran the original Intel Atom Z3000 series driver set (HP file sp72926  signed Oct. 2015), which restored functionality while allowing the Windows Update.

 

The second time (25 June 2016), I tried reinstalling the drivers but this time it aborted and forced a rollback, leaving me without touch or sound.

 

Finally I hit upon a solution!  Device Manager revealed that the I2C drivers were failing to load properly (Code 31 errors).

 

I opened up the "Drivers" folder of the unpacked sp72926 and found a folder "I2C" there.  Inside was a set of files including an .INF file.  I right-clicked it, selected "Install" and voila! Sound and touch instantly returned, without even the need for a reboot (although I did one just to make sure).

 

No problems for the past several hours.  Appears fixed to me!

 

Device Manager reports 5 listings of "I2C Controller", all by Intel, all version 604.10143.1010.2969, all dated 2015-06-08

 

When I updated the I2C driver using Device Manager, Windows Update downloaded and installed version 604.10154.1010.7150, dated 2015-10-01.  Reboot will determine if it still works properly.

 

EDIT: The updated I2C driver appears to work well.  Audio and touch fully operational.  No other side effects.  SOLVED!

 

EDIT: An explanation of HID over I2C (Inter-Integrated Circuit) can be found here:

https://msdn.microsoft.com/en-us/library/windows/hardware/jj127208(v=vs.85).aspx

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