Or search 'Allow users to defer updates: on shutdown and on startup.' in the Microsoft Feedback Hub (search for 'Feedback Hub' in Windows 10). Microsoft has lots of feedback on the topic, but has not taken action. New versions of Windows 10 have altered previous workarounds. How can I shut down Windows 10 without installing updates. But that did not work for me on Windows 10. With Windows 7 it was possible to use the task manager screen to shut down without applying updates (see How to shut down the computer without the update on Windows 7? ).
