Hi Jace,
Thank you for writing to Microsoft Community Forums.
The functionality of drag and drop has been removed for Windows 10. Disabling Auto Arrange and Align to Grid options is no longer possible in Windows Explorer for Windows 10.
Drag and drop will not work with the Windows 10. The order of items in a folder must be based on one of the properties available as a column in Details view (default is Name).
The numerical prefix to your folder names is your best option.
We value and appreciate your feedback and suggestions to help us improve your Windows experience through Feedback Hub app.
Hope it helps,
Muralidhar
Microsoft Forum Moderator