Although you can easily repair hard disk and registry problems - you can employ a
variety of ways; on the other hand, this is the simplest and most efficient one. Perhaps your current pc is not behaving as you'd like, but you might not need to replace it; as a first step, "clean" and reorganize your windows registry - your old computer may start behaving brand new. If you're tired of errors (who wouldn't be?) simply install one of these repair utilities and try it out; there are high chances that you can get back to some error-free computing. People are becoming sophisticated computer users and as such, it's only natural for them to want to troubleshoot their own computer problems without having to call in outside help. Of course there is a lot more to this subject, nonetheless, i think you'll find that this introduction will be more than enough in order to help you.