The process will automatically scan for and detect problems within your system, which can take a few minutes to complete. The first step is the safest way to resolve Windows 10 Update issues. Here’s the process-in order of importance. If Windows Update freezes or gets stuck, there are several steps to try. Other than those two situations, the OS may run into an installation bug or data problem that stops it in its tracks. Other times, the OS fancies doing its own thing for a while, slowing your eagerly awaited update to a crawl.
Perhaps your Windows 10 downloaded half of the update before deciding it doesn’t want to stay connected to the server.