Microsoft provides several Insider programs which you can participate to get a preview of the latest features and updates, as well as provide feedback to Microsoft for bugs, issues, and request features.
In case you are trying to figure out what Insider programs are available and how you can sign up to participate, see below for the individual programs.
With the release of Windows 10 version 1511, the following tools to support this latest release has been made available, which includes Windows 10 Administrative Templates (.ADMX), Windows Assessment and Deployment Kit (ADK), Remote Server Administration Tools (RSAT), as well as the Windows 10 Media Creation Tool.
Windows 10 Administrative Template (.ADMX)
Remote Server Administration Tools for Windows 10 (RSAT)
Windows 10 Assessment and Deployment Kit (ADK)
Windows 10 Media Creation Tool
Microsoft Office 2016 Administrative Templates and Office Customization Tool is also available for download.
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