Windows 10: '%WINDIR%\ShellNew' -VS- '%APPDATA%\Microsoft\Windows\Templates'

Unable to find rock solid information on the difference between these two; the google has spoken and presented me with sources spouting speculation. It would seem that the one is the system template location while the other is the user template location. Are they even in the same category of existing for the shell new context menu or am I way off?

Also, from what I can tell about templates for shell new files is that the location doesn't really matter. While this article instructs me to use ShellNew (as it was also this that I had used in the past and was familiar with), but remembering my awesome 'New Menu Editor 2.6.1.0' tool by RBSoft I recall that these templates can be placed anywhere (though I would highly advise against that)

:)

 

Adding an app to new item in File Explorer

If the ShellNew folder does not exist - you can create a new folder and name it ShellNew . . .

 

Explorer crashes with right click->New context menu

Copied the files of SendTo over, no change. SendTo was never an issue though; it still works fine. ShellNew is empty on the new account as well, but the issue is not present. In fact, as ShellNew is in Windows and not Users, it is the same ShellNew that
I artificially made today. The same for both accounts, yet it works on one and not the other.

Tried that link, but it only refers to making and populating SendTo, and my SendTo is already populated.