Purpose
This article will walk through resolving the issue of the first action after CTOS failing (usually installing the agent) when deploying Windows 10 (Build 1703).
Problem
Provisioning fails at first action in system configuration area of template when deploying a Windows 10 (Build 1703) image.
Cause
This appears to be an issue specific to Windows 10 Creator's Edition and may be a bug with that build. It is not affecting any Windows version other than build 1703.
A link to a discussion on a Microsoft website for more information is below:
Windows 10 v1703 - Provisioning Package - Microsoft Partners Forum
Solution
There are currently two working solutions:
1.) Include "<SkipMachineOOBE>true</SkipMachineOOBE> <SkipUserOOBE>true</SkipUserOOBE>" in the oobeSystem part of the unattend file being used (this is included by default in the LD_Default_Unattend.xml).
2.) Add a reboot with 100 second delay as first action in system configuration area