How to Stop Letting Microsoft Use Your PC for File Sharing
One place Microsoft is attempting to make Windows Update more streamlined is by having users share their connection with others to speed updating through P2P.
For most users, this isn’t anything they’ll notice or have a problem with, but for anyone with limited Internet where they pay for their bandwidth, it can be a real problem! Fortunately, you can turn it off! Here’s how it’s done.
First, head to Settings then Update & Security. From there, go to Windows Update on the left menu, then click Advanced Options under the Update settings area.
Now, under the Updates from more than one place section, turn the toggle to off. Now, when you update, you will not receive updates from other users, nor will you send data for their updates.
Source from: makeuseof