This always gets repeated, sounds good and makes sense theoretically but in reality there's no good way to do that and it should be the job of a computer to that.
Restoring one file from the backup, works but what if something else is corrupted?
Restoring the system from the image, works but what if some directory is not in the backup and you don't see that while testing?
Restoring one file from the backup, works but what if something else is corrupted?
Restoring the system from the image, works but what if some directory is not in the backup and you don't see that while testing?