Excessive bandwidth consumption svchost.exe
Same problem, I'm on limited internet access (satellite provider) and I kept exceeding my usage. Long story short, I've finally eliminated everything else and identified the problem as svchost.exe using NetLimiter3 (free download). I selected the process (it's usually listed as Process 700 or Process 708) and clicked on "kill process". It will start again upon reboot but I'll kill it each time until I do more research as to which instance of it I want to permanently delete.
My computer was using 100+ mb of bandwidth each hour.