Winker Windows 7-11 Activator 

Automatic activator for Windows VL editions: Vista, 7, 8, 8.1, 10, 11, Server 2008, 2008 R2, 2012, 2012 R2 also Office 2010, 2013, 2016. 
Additionally, it 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. 

Run Activator.exe as administrator and follow on screen instructions and select your Windows distribution and version. Wait for it to activate.Then Restart & Enjoy!
See screenshot inside ZIP.
Note:  Disable AV before runing.

GitHub