Personally, I think you just need a new phone. I let my phone manage itself no problems and always has around 80-100mb free doing stuff by itself. Your quest to manage your phone ruined the phone's OS itself.
Point is, no I don't think what you want can be done because its designed that way at the lowest level of the system itself. Its a Linux base and that's how Linux was designed. You have to edit the OS itself at the Linux level to turn it into Windows.