So in other words, when it's necessary to fix a cfg overflow error your very first order of business will be to see if your registry system is fully operational. 'non-related' registry keys often cause problems with your windows os and the best method to find these keys is to take advantage of these useful applications. It is obvious that anytime you run into windows errors it is always recommended to immediately verify that your windows is current and you've installed the latest updates. Surely in the years (months, perhaps?) to come a registry repair tool will be installed on everyone's computer, which, besides your chosen anti-viral program is an important pc maintenance tool. These are just some brief guidelines, however, i believe that this introduction will be more than enough to get you on your way to error-free computing.