To turn off windows update in windows 10 follow these steps:
1. Open Start menu, then click Settings (the gear icon on left corner)
2. On search bar, search for “Administrative Tools” and click on it.
3. Double-Click on “Services”
4. Look for a service called “Windows Update” and Right-click and “Properties”.
5. Change “Startup Type” to “Disabled”
6. Click “Stop” button and Apply changes.
That’s it.
Now your windows 10 will not download further updates.