It installs the update up to the 100% mark and then freaks out and undoes the install.
Some events of interest. in reverse order. All within a 8 minute stretch.
Installation Failure: Windows failed to install the following update with error 0x800F0922: Cumulative Update for Windows 10 Version 1607 for x64-based Systems (KB3176938).
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The following boot-start or system-start driver(s) did not load:
dam
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The specified resource type cannot be found in the image file
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The Update Orchestrator Service for Windows Update service terminated with the following error:
The media is write protected.