In an ideal world, this wouldn't be an issue – but this isn't an ideal world, and upgrading Windows is never as straightforward as Microsoft would have you believe.
For the most part, Windows updates happen silently in the background, only installing after a prompt or when you shutdown your PC.
Ignore that message, it's lies – for one, there's no app to uninstall as it's Windows 10 causing the issue.
Perhaps it's downloaded half of the update before deciding it doesn't want to stay connected to the server.
Therefore, anyone currently encountering this issue, will have to just sit tight for a little longer.
Sometimes, updates can be large and require a long time to download.
The other solution is to restore the system to a point and then install the updates manually I found this awesome link which explains the solutions to this Windows 8 Stall problem Here are two similar questions: Windows 8 stuck installing update and How to cancel Windows Update? My guess is that this is a bug where MS forgot to add whatever is needed for that small shield to be added to the button and check user privileges .
Instead, go to Method 2: Run the Windows Update Troubleshooter If Windows Update freezes during download, use the following method.