How can I change the Windows 10 version 1803 shutdown sequence?

In my experience, every time a Windows 10 Feature Update is installed (e.g., version 1709 or 1803), it re-enables the Fast Startup function. Try to disable Fast Startup and see if that alleviates the problem:

1. Press + X

2. Select Power Options

   

3. Select Additional power settings on the right

   

4. Select Choose what the power buttons do on the upper-left

   

5. Select Change settings that are currently unavailable

   

6. Scroll to the bottom of the window and uncheck the box associated with Turn on fast startup

   

7. Click the button to Save changes

8. Reboot your system

(Source)