While you can (without too much trouble) free hard disk space and fix problems -
there are many ways to do so; however, this is undoubtedly the most effective and user-friendly one. Do we place our complete faith in these tools to fix all our troubles? That's probably not the case, but regardless, i do feel it's definitely powerful enough to handle most problems. And it's often useful when trying to optimize your pc to begin by refreshing your system's operating files, and thus purge your computer of troubles that are caused by old / corrupted files. An important thing to understand is that your pc is no different from your car as it demands basic upkeep to keep it operating at its optimal level. Take care of your pc and maintain it properly; should you leave too many things to chance, don't be surprised to see an assortment of troubles on your hands.