I am using a Sony Vaio laptop. My younger brother has deleted the partition where the Windows XP was installed. After that it is not working properly. Now I have to install another on that. I am thinking to install the XP or Windows 7 this time. My problem is that, .if I try to install Windows XP then it get stuck on 0% or it goes to 100 % and after that it fails. If I try to install the Windows 7 then it boots up with the DVD and when I click on the Install button then it shows me a error message that contains “Driver missing”. I am not able to install any of those. What may be the problem with it? If I turn on the laptop then it shows me error that cannot load the operating system. Please help.