It's not opt-out with mobile broadband connections. These are automatically set to metered by default [1]. [1] http://windows.microsoft.com/en-gb/windows-8/met

It's not opt-out with mobile broadband connections. These are automatically set to metered by default [1]. [1] http://windows.microsoft.com/en-gb/windows-8/metered-internet-connections-frequently-asked-questions http://windows.microsoft.com/en-gb/windows-8/metered-interne...