You might also look at "HDD Regenerator." I used it to bring back an old IBM DeskStar aka "DeathStar" that was literally clanking like the heads were slapping the platter. Spinrite is also very good. For me, one has worked better than the other on different drives so I can't tout one over the other. Spinrite is legendary & has been around longer than Windows. Either or both are a lot less expensive than a commercial data recovery shop.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken