It's true that you can fix hard drive error code 4 - there are many methods you can
try; but this utility is without a doubt the most effective and user-friendly one. You have to realize one thing: although antiviral applications do away with many viruses, they don't actually fix the chaos that many viruses leave behind in your registry. No matter what kinds of problems you come across, begin your "sleuthing" by making sure there's enough free disk space available as a lack of disk space can often lead to trouble. More and more people really know their way around their windows, so naturally they'd like to know how to resolve the various problems they encounter all by themselves, whenever possible. A last note - if you know of someone with similar problems, go ahead and forward this report to them; everyone needs a helping hand (and their computer does, too!).