They're going to see the scary number, click "Ignore error", retry and tell you that there was some error... something about 'technical support'... If you ask them to retry and note the scary number, they won't understand the purpose. Even if they read it, they'll only remember that their "file system is damaged", thinking about buying a new computer. I'm serious, I had similar experiences. Your approach may be good for more advanced users (who had contact with 'security permissions' and 'file systems'), but I believe it's not worth the effort to maintain such messages.