Registry Smoker

This useful program searches for and deletes invalid entries from the registry, putting them through a three-level security check to determine if they're valid or not.

Entries are only considered invalid after passing though the three levels of checks. This sets Registry Smoker apart from other tools that delete entries without properly checking if they are really invalid.

This way, you're the one to specify which elements, according to the results, should be deleted or not.

In any case, Registry Smoker creates a backup copy before proceeding to delete the entries, so you can restore them in the case of an error.