I don’t know about you, but I’m sick and tired of reading these sensational headlines: “Windows 10 is Stealing Your Bandwidth!” and “Windows 10 is Costing You Extra Money!” and so forth. By the end of this article, you’ll understand a thing or two about Windows Update Delivery Optimization (WUDO), how to control its behavior, and what you can do to minimize the likelihood of running over your ISP account’s bandwidth limit.
Source : 4sysops