With Windows 10, Microsoft decided that all security and program updates would install automatically the day they are released. This makes sense for security, since millions of Windows users worldwide do not install updates and leave their computers open to attack.

If you use Windows 10 Pro or Enterprise, there is an option to defer updates for a little while. If you run Windows 10 Home, however, you are out of luck.

"Windows Update Delivery Optimization (WUDO)" is the way Windows 10 gets updates has changed. By default, it is downloading update files from other users, and other users get to download update files from your computer. In a nutshell, Microsoft is using your Internet connection to update other people's computers. To turn off WUDO, please follow the steps below:
  • In Windows 10, go to Start >> Settings and click "Update & security."
  • Select "Windows Updates" and then click the "Advanced Options" link.
  • Click the "Choose how updates are delivered" link.
  • Under "Updates from more than one place," switch it to "Off." If you have multiple Windows 10 computers on your network, you can leave it on and change the setting below it from "PCs on my local network and PCs on the Internet" to "PCs on my local network."
That means instead of downloading a full set of updates for each computer, you will download one set for all your computers. That actually saves you on Internet bandwidth. If you decide to turn this off completely, you will still automatically receive Microsoft updates.