Ed can't figure out why he's being notified that he's using 150GB of data every month. He doesn't stream or download things. Leo says it's very easy to burn through 150GB a month. Windows updates are in the GBs now. He can go into his network and internet settings of his computer and see how much data he's using on each computer. His router may be able to tell him as well. He can navigate to his router's address in a browser window and it can tell him. If it doesn't, he can get a new router that can.