The Windows Assessment and Deployment Kit (Windows ADK) is a collection of tools that you can use to customize, assess, and deploy Windows operating systems to new computers.
Supported Operating System
To install the Windows ADK, your computer must be running one of the following operating systems:
• Windows 8.1
• Windows 8
• Windows 7
• Windows Server 2012 R2
• Windows Server 2012
• Windows Server 2008 R2
Direct Download Link: http://download.microsoft.com/download/6/A/E/6AEA92B0-A412-4622-983E-5B305D2EBE56/adk/adksetup.exe
The Windows Driver Kit (WDK) includes the tools and documentation you need to develop drivers. Windows Driver Kit (WDK) 8.1 is integrated into Microsoft Visual Studio 2012 (Professional, Premium, and Ultimate) to provide you with a complete set of tools to develop, build, package, test, and debug drivers.
Direct Download Link: http://go.microsoft.com/fwlink/?LinkID=317353
Direct download link: http://go.microsoft.com/fwlink/?LinkId=322042
Following criticism from TechNet and MSDN subscribers, Microsoft has announced plans to release the Core and Pro RTM builds for Windows 8.1 and Windows Server 2012 R2 to users of those services. Additionally, the release candidate build for Visual Studio 2013 will be provided to TechNet and MSDN subscribers.