This PC (previously My Computer) shows by default shows folders as well as devices and drives grouped by type. This is a much better view compared to the alphabetical listing. If you would like to rearrange the order of the groupings you have to play with the sort criteria.
1) In the File Explorer with This PC open, right-click anywhere in the right pane.
2) In the context menu, select Sort by.
3) In the Sort by menu, select Type.
4) While Type is selected, click on Descending.