this is annoying...hey guys...um i installed 64 bit 7 ultimate on my old comp and at that time i downloaded a patch/crack/activator and it worekd perfectly...but i cant find that crack anymore...so everytime i install win 7 oon my new comp and i get like other cracks and stuff it sure activates it, but it says windows is not genuninne and my background is black and its horrible....:( please help with this matter???

thank you!