Very few programs are running on my desktop computer yet I am watching download data go through the roof. Only thing I can think of is I received an update to windows this week. Anyone have any ideas. Over a Gig of data in 4 hours is crazy.
I agree, we need to know your OS and version of that OS as well as what other devices you have connected. Still that sounds as if it may be the Creator's Update for Windows 10, that thing is 5 GB. Afterwards, check all your settings and, set your connection to metered, the Creator's Update does enable that for Ethernet connections as well as WiFi connections.