KMSAuto Net - the automatic KMS solution to activte the following operating systems Windows Vista, 7, 8, 8.1, Server 2008, 2008 R2, 2012,
2012 R2 VL and Retail also for Office 2010, 2013 VL editions.
Additionally, the program activates:
Windows 8.1 Single Language;
Windows 8.1 Core;
Windows 8.1 Core N;
Windows 8.1 Pro WMC;
Windows Embedded 8.1 Industry Pro;
Windows Server 2012 R2 Standard;
Windows Server 2012 R2 Datacenter.
It is based on KMS Server Service from mikmik38 (MDL).

Changelog in :
Adds support for Windows Technical Preview, Windows 10.