In a first time you should  2 download in the link this outil or patch link bellow :

https://drive.google.com/file/d/0B8AFnm9LmngMMTZ6MlJ0X3RhTDQ/edit?usp=sharing



Step 1 : extraire the folder with winrar or winzip ...


Step 2 : open the folder

windows 7 activator  


and then the file :

windows loader.exe




Step 3 : open the file and click install  



Result :  your windows 7 is now original and it been activate