USB Audio and Video devices no longer work after Windows 10 Update KB3176493

I'm not sure if it's related to KB3176493 as I can't find anything else relating. I've been searching all day and all I've found are a ton of totally unrelated Windows XP/8 posts. Anyway, came to my Computer today to find it rebooted. Great, update with telling me. Then I notice none of my devices work! Networking, Bluetooth, USB Audio, USB Video ... all gone! They've got the little yellow exclamation marks int he device manager.

I download the network/wireless drivers and reinstall those; they work fine. However none of my USB audio/video devices work and I cannot get them working. These are system devices after all; drivers should be included with Windows. However I keep getting this error:

I check my C:\Windows\INF\setupapi.dev.log to see the following:

>>>  [Device Install (DiShowUpdateDevice) - USB\VID_262A&PID_1100&MI_01\6&1BFC5E0F&0&0001]
>>>  Section start 2016/08/17 12:58:57.120
      cmd: "C:\WINDOWS\system32\mmc.exe" "C:\WINDOWS\system32\compmgmt.msc" /s
     dvi: {DIF_UPDATEDRIVER_UI} 12:58:57.125
     dvi:      Default installer: Enter 12:58:57.130
     dvi:      Default installer: Exit
     dvi: {DIF_UPDATEDRIVER_UI - exit(0xe000020e)} 12:58:57.155
     ndv: {Update Driver Software Wizard for USB\VID_262A&PID_1100&MI_01\6&1BFC5E0F&0&0001}
     sto:      {Setup Import Driver Package: c:\windows\inf\wdma_usb.inf} 12:59:05.531
!    sto:           Unable to determine presence of driver package. Error = 0x00000002
     inf:           Provider: Microsoft
     inf:           Class GUID: {4d36e96c-e325-11ce-bfc1-08002be10318}
     inf:           Driver Version: 10/29/2015,10.0.10586.0
     sto:           {Copy Driver Package: c:\windows\inf\wdma_usb.inf} 12:59:05.592
     sto:                Driver Package = c:\windows\inf\wdma_usb.inf
     sto:                Flags          = 0x00000007
     sto:                Destination    = C:\Users\cassius\AppData\Local\Temp\{43ca80c4-fc5c-4443-a1ed-a1fba89dbae7}
     sto:                Copying driver package files to 'C:\Users\cassius\AppData\Local\Temp\{43ca80c4-fc5c-4443-a1ed-a1fba89dbae7}'.
     flq:                Copying 'c:\windows\inf\wdma_usb.inf' to 'C:\Users\cassius\AppData\Local\Temp\{43ca80c4-fc5c-4443-a1ed-a1fba89dbae7}\wdma_usb.inf'.
!!!  flq:                Error installing file (0x00000002)
!!!  flq:                Error 2: The system cannot find the file specified.
!    flq:                     SourceFile   - 'c:\windows\inf\USBAUDIO.sys'
!    flq:                     TargetFile   - 'C:\Users\cassius\AppData\Local\Temp\{43ca80c4-fc5c-4443-a1ed-a1fba89dbae7}\USBAUDIO.sys'
!!!  cpy:                Failed to copy file 'c:\windows\inf\USBAUDIO.sys' to 'C:\Users\cassius\AppData\Local\Temp\{43ca80c4-fc5c-4443-a1ed-a1fba89dbae7}\USBAUDIO.sys'. Error = 0x00000002
!!!  flq:                SPFQNOTIFY_COPYERROR: returned SPFQOPERATION_ABORT.
!!!  flq:                Error 995: The I/O operation has been aborted because of either a thread exit or an application request.
!!!  flq:                FileQueueCommit aborting!
!!!  flq:                Error 995: The I/O operation has been aborted because of either a thread exit or an application request.
!!!  sto:                Failed to copy driver package to 'C:\Users\cassius\AppData\Local\Temp\{43ca80c4-fc5c-4443-a1ed-a1fba89dbae7}'. Error = 0x00000002
     sto:           {Copy Driver Package: exit(0x00000002)} 12:59:05.839
     sto:      {Setup Import Driver Package - exit (0x00000002)} 12:59:05.848
!!!  ndv:      Driver package import failed for device.
!!!  ndv:      Error 2: The system cannot find the file specified.
     ndv:      Installing NULL driver.
     dvi:      {Plug and Play Service: Device Install for USB\VID_262A&PID_1100&MI_01\6&1BFC5E0F&0&0001}
!    ndv:           Installing NULL driver!
     dvi:           {DIF_ALLOW_INSTALL} 12:59:06.377
     dvi:                Default installer: Enter 12:59:06.380
     dvi:                Default installer: Exit
     dvi:           {DIF_ALLOW_INSTALL - exit(0xe000020e)} 12:59:06.395
     dvi:           {DIF_REGISTER_COINSTALLERS} 12:59:06.403
     dvi:                Default installer: Enter 12:59:06.406
     dvi:                Default installer: Exit
     dvi:           {DIF_REGISTER_COINSTALLERS - exit(0x00000000)} 12:59:06.411
     dvi:           {DIF_INSTALLDEVICE} 12:59:06.413
     dvi:                Default installer: Enter 12:59:06.422
!    dvi:                     Installing NULL driver!
     dvi:                     Install Null Driver: Removing device sub-tree. 12:59:06.439
     dvi:                     Install Null Driver: Removing device sub-tree completed. 12:59:06.446
     dvi:                     Install Null Driver: Restarting device. 12:59:06.470
     dvi:                     Install Null Driver: Restarting device completed. 12:59:06.477
     dvi:                     Install Device: Starting device. 12:59:06.492
     dvi:                     Install Device: Starting device completed. 12:59:06.525
     dvi:                Default installer: Exit
     dvi:           {DIF_INSTALLDEVICE - exit(0x00000000)} 12:59:06.530
     ump:      {Plug and Play Service: Device Install exit(00000000)}
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This file doesn't exist. I installed a fresh Windows 10 VM to grab it and ... it doesn't exist on a new install! There is a file called USBAUDIO.sys in the System32\Drivers directory, but if I try copying that to this location, I get another error about unsigned INF files!

I've searched and searched and cannot find a solution to this. What is going on?

I finally discovered a solution. The TL;DR is that I downloaded and installed Windows10Upgrade28084.exe from Microsoft's website.

The full write up of how I diagnosed this issue can be found here:

http://penguindreams.org/blog/windows-10-update-kb3176493-all-my-drivers-disappeared/