Yes. Don't ask me how i know this.Don't you run the risk if you're a little enthusiastic or inexperienced of disabling things like graphics cards and virus scanners by doing this?
Honestly. I've been fixing PCs for ten years and the only way to really get them to run 'as new' is to wipe 'em and reinstall. And its easier to do than ever these days.
If your hard drive is giving problems try getting this and running it.