Windows update insider

Monzia I am dealing with the same exact issue. Typically, when an update gets stuck, I am giving it some time to see if anything changes. That is not the case for this specific update, so to stop it, I am opening "Services", scrolling until I get to the "Windows Update" one, and disabling it after stopping it. To be more precise with the steps:

1. Win + R, to open up the "Run" utility
2. Inside that, type "services.msc", and hit Enter
3. In the window that is going to open, scroll down till you find "Windows Update"
4. Right click on it, and select "Properties"
5. On the popup, click on the "Stop" button, and wait until the service stops
6. When the loading is done, set the "Startup Type" to "Disabled", and click "Apply"

You can re-enable the "Windows Update" service by setting the "Startup Type" to "Automatic" or "Manual", when a new Windows Update gets released, in case that fixes things.