How to active windows 7/8/8.1 by Phone

As of April 2014, the most recent versions of Windows for personal computers, smartphones, server computers and embedded devices are respectively Windows 8.1, Windows Phone 8.1, Windows Server 2012 R2 and Windows Embedded 8.

Link download: 

Windows 7 Ultimate Sp1 (x86) 

Windows 7 Ultimate Sp1 (x64)

Windows 8.1 Enterprise with Update (x86)

Windows 8.1 Enterprise with Update (x64)

Tutorial video

Activate:

1. Open this url: http://www.winphoneviet.com/forum/threads/free-no-crack-call-skype-active-by-phone-all-window-office-update-key-daily.67027/
2. Get 1 key for your OS
3. Run CMD as administrator
4. Paste your key and press enter (ex: slmgr.vbs -ipk 3NRGW-XXXXX-XXXXX-XXXXX-BY33Q)
5. Open Run (Windows+R) and type "slui 4" → Enter → Select your country and Next

6. Run Skype and call +448000188354

→ Enter security code
→ Press 1 key
→ Press # key
→ Enter 9 your group
* If failed you can try other key → Run CMD as administrator → type slmgr /upk → follow step 1..6

7. Enter your confirmation ID and Activate Windows, you can check update

KMD