many of u have complained that windows 7 after installing asking for activation key
here is the solutio n just download this file and run the given file as an administrator thats it ur windows 7 is activated
note:-cclick on LOADER after opening the application
here is the preview of activation this is my own system

This image has been resized. Click this bar to view the full image. The original image is sized 950x628.

PASSWORD FOR THE RAR FILE IS jayaraj.chinna
downlaod and enjoy i will soon post vista activator