Norton utils was good, a long, long time ago
When Peter Norton founded and ran the company (1982-DOS days), and up until he sold it, at the time, those utilities were far more advanced than anything Microsoft had ever developed and Sys Internals (1996) wasn't even a concept yet. I think I still have one of his books around for Dos internals
The unerase utility saved my butt, many times. I kept buying updated versions even after symantec bought it, but it just kept getting more buggier and more bloated until finally one version completely screwed over a drive and that was it for Symantec -Anything, To this day, I won't touch any product in their portfolio ever again.