I amusing Dell Dimension E310 desktop and I was using windows vista. Last week I have formatted my laptop and I have also formatted my WD My Passport Essential 500GB portable hard drive. Now after formatting both I have installed all the drivers in my laptop again and after that when I have tried to install WD Smartware software at that time installation starts normally but after some time it gives me this message. "Installation was not successful (Error Code: 1603) Please try again or contact WD support for assistance." Please tell me what I should do to fix this.