I am stuck.

I have created a customized start screen .xml with the export-startlayout command.

I placed the file in a share, I configured the GPO to import that .xml file.

When I log in, I get the two groups I specified, but, the two default live tile groups are still there. 'Life at a glance' and 'Play and Explore'

I found the steps here:
Customize Windows 10 Start with Group Policy (Windows 10)

But I must be missing something, as I don't want to have to go to each machine to remove these groups after I install Win 10 on all of the workstations.

Thank you.