Did you know Shut Down in Windows 10 don't actually shut down your computer ?

The Kernel is still active in the background, it allows for a faster restart. If you want to really shut down your computer you need to disable that function. Here's how to do it.

In the search windows type : Control Panel

Select Hardware and Sound

In the power options click : change what the power buttons do.

At the top of the window click : change settings that are currently unavailable.

This would allow to uncheck the boxes that are greyed out at the bottom of the window.

Uncheck : Turn on fast startup. If the option is not there for you, that means your computer doesn't have that feature and is already turning off completely by default.

Done.

Now when you shutdown your computer, it will actually do it completely.