Apple’s iOS 7 was supposed to make it easier for schools to manage the iPads that are becoming increasingly common in the classroom. But for some, the latest version of the mobile operating system is proving to be a bit of a headache. A number of schools that have upgraded their iPad deployments to iOS 7 said that installing the new OS removed the supervision profiles they had installed on the devices. This rendered those iPads unsupervised, depriving administrators of their remote-management privileges and eliminating the filtering protections they had established to prevent students from accessing inappropriate content they might stumble upon outside school. “Apple did not realize that installing iOS 7 would remove our (and thousands of organizations across the country) safety protection measure, which now makes the iPad devices unfiltered when accessing the Internet away from school,” said a memo from the Manitou Springs (Colo.) School District 14 to parents.