Hello, I have Dell Laptop Model Number:- Dell Inspiron 15(713) i.e. Inspiron 15 (N5050) , I have already installed Dell Windows7 Ultimate 64 bit pre-activated version dowloaded from torentz link ,but i am unable to activate Windows7 Ultimate in my laptop. Still i am getting 3 days trial in Windows Activation section.Any how i do not want to use any Loader or Activators.Is there is any other way to activate Windows7 in my laptop? Therefore I would be obliged if any one can assist me in this matter. Thanx, Dipak.