In conclusion, now that you're more familiar with your windows, you'll now be able to fix a cfg error in just a few minutes from now. If you consider reformatting your hard drive because of performance issues, an easy registry tune-up is a much easier path to take. I suggest that you go ahead and download a recommended errors repair tool and search your windows registry; you have nothing to lose and most likely you will soon be enjoying your pc again. Try to keep in mind that your pc is just like anything else you need and value since it requires periodic maintenance to keep it operating at its optimal level. Understanding the basics of how your windows system works is a good idea for everyone since it might help you to avoid a lot of hassles, so you'll be able to handle these issues by yourself.