First of all Open your Command Prompt (Cmd) as an Administrator.To Open it as an Administrator GO to Start-menu and Type cmd then Right Click on the Cmd and click on Run as Administrator as Shown below in the Image.
Now Type the Command SLMGR -REARM in cmd as Shown below in the Image
Press Enter and Wait For Few Seconds
AMessage Dialog Box Will open Specifying Command ‘ Completed Successfully.‘ as Shown below in the Image
Restart Your Computer and done.Now You are Free of the Error ‘Windows 7 is Not Genuine’
Important Note - You Must Run Command Prompt as an Administrator Else this Method Will Not Work
http://www.erecsys.com/
Your All Windows is "permanent activated"
Supported Version
Windows Xp All Versions
> Windows XP Starter Edition,
> Windows XP Home Edition,
> Windows XP Home Edition N,
> Windows XP Professional,
> Windows XP Professional N,
> Windows XP Tablet PC Edition,
> Windows XP Media Center Edition
> Windows XP Media Center Edition 2003
> Windows XP Media Center Edition 2004
> Windows XP Media Center Edition 2005
> Windows XP 64-bit Edition –
Windows vista All Versions
> Windows Vista Starter
> Windows Vista Home Basic
> Windows Vista Home Premium
> Windows Vista Business
> Windows Vista Enterprise
> Windows Vista Ultimate
Windows 7
> Windows 7 Ultimate E
> Windows 7 Professional
> Windows 7 Professional E
> Windows 7 Home Premium
> Windows 7 Home Premium E
> Windows 7 Home Basic
> Windows 7 Starter
> Windows 7 Starter E
> Windows Vista Ultimate
> Windows Vista Business
> Windows Vista Business N
> Windows Vista Home Premium
> Windows Vista Home Basic
> Windows Vista Home Basic N
> Windows Vista Starter
> Windows Server 2008 R2: Enterprise
> Windows Server 2008 R2: Standard
> Windows Server 2008 R2: Foundation
> Windows Server 2008: Enterprise
> Windows Server 2008: Standard
> Windows Server 2008: Foundation
> Windows Small Business Server 2008
> Windows Small Business Server 2011
> Important Note 1: You must be running build 7600 or greater for Windows 7 and
Windows Server 2008 R2.
> Important Note 2: I do not recommend using any of the Windows 7 E editions.
> Important Note 3: Windows 7 N editions will only be supported when OEM SLP
serials leak.
Windows 8
> Windows 8 Professional
> Windows 8 Enterprise
> Windows 8 Core
> Windows 8 Personalization Enabler
