I want to tell my problem that resume, at the concrete problem that my windows 8 pro i don't know what is the reason doesn't work anymore activate with these method. First of all, i activated the same windows on the same machine for more that 4 time but, now when i try to activate it give me an error that i show you imediately. I don't know what is the reason i can tell and i can assure that i follow all the corect steps: It seems that i can't show you some images. PS: I confess that i used the same key at the installation of windows, i set corect the time zone. I want also to confess that all my tries when i activated succesful this copy of windows happend when i have internet connection from another ISP, but in this moment also i change my ISP so this can be problem?