How to remove(unregister) registered instance from Unity mapping?

I had the same problem and just removed the registrations of the ContainerControlledLifetimeManager from my Container: foreach (var registration in container.Registrations .Where(p => p.RegisteredType == typeof(object) && p.Name == name && p.LifetimeManager.Type == typeof(ContainerControlledLifetimeManager))) { registration.LifetimeManager.RemoveValue(); }