Looks like you have Windows 10 Pro, so you can in fact control when to download updates via group policy. Home users have no choice but to use the troubleshooter tool (without resorting to hacks which I would never recommend as people would do more damage than good).
Follow the steps in order
1) Press Winkey+S
2) Type in group policy
3) Press enter to edit group policy
4) Go to Administrative Templates on the left hand side under computer configuration
5) Windows Components on the right hand side panel
6) Scroll all the way down to windows update
7) Click on Configure Automatic Updates
8) Choose enabled (2nd option)
9) Under "Configure automatic updating" choose "notify for download and notify for install".
10) leave "install during automatic maintenance" unticked
11) Click okay, and restart.
12) Go to settings and it should say some settings are managed by your organisation. If not then it will come into play the next time it checks for updates.
The forced updates are to ensure everyone is on a level playing field, for years some people never had updated computers, some had some patches applied, some all but in the end the vulnerable PC's were used as p2p nodes for spreading malware.
Furthermore by ensuring a level playing field, Microsoft can proceed with their OneCore - this only works when all components are jelled together for a nice, cohesive experience.