Sorry if the title is abit confusing. So... I have an old release of windows 7 installed via bootcamp on my macbook pro and it works fine and great. However I want to install a newer release and Im not sure what way it should be done. Can I simply run the set up in my current windows 7 installation and install the new release this way? or would I have to format the bootcamp partition and go through the bootcamp assistant again?