If you are here, you either know what a BADMIF is or Google brought you here after you searched for something like ‘Large number of BADMIFS’ or ‘Can I delete BADMIFS’ or something like that. Anyway, if you want great info on what MIFs are and some great in-depth troubleshooting steps for them, you should check out Umair Kahn’s post over on Tech Community (migrated from Technet). It’s a bit old, but still very relevant.