Stop Windows 10 Update. If your PC has already started installing the update (i.e., it's on a blue screen with a progress percentage, and it explicitly tells you not to turn off your computer), listen to it. If so, in this guide, we share three ways to stop this behavior and decide when to install them.
If you opt for this solution, security updates will still be installed.
You can Stop Windows Update Service, Apply Group policy or Tweak windows registry.
When you're stopping an update in progress, your computer system has already started the installation of the update. By default, you should see "Windows Updates is not blocked" in red letters and a red button that says "Stop Windows Updates!" As much as it might be tempting to hit the power button to get your PC.