Just so, what happens if I uninstall Windows 10 Update Assistant?
Windows 10 Update Assistant will be dead forever and you are free to use your perfectly working as-is PC indefinitely without interruptions.
Furthermore, is it safe to uninstall Windows 10 update? If a smaller Windows update has caused some odd behavior or broken one of your peripherals, uninstalling it should be pretty easy. Even if the computer is booting fine, I generally recommend booting into Safe Mode before uninstalling an update, just to be on the safe side.
In this regard, why do I need Windows 10 Update Assistant?
Windows 10 Update Assistant is meant to ensure users deploy the latest Microsoft Windows updates that they might miss or choose not to apply, which can lead to vulnerabilities. It provides push notifications that inform the desktop user of any updates he has not yet added.
Is Windows 10 Update Assistant safe?
It is safe to use Windows Update Assistant to update your version, it will not affect your computer's working and it is perfectly safe to use it in order to update your system from 1803 to 1809.