How do I _fully_ uninstall LibreOffice from Windows?

I’m trying to test the initial installation procedure for a headless installation of LO, and need to reset the machine to its pre-installed state. Deleting the directory where it was installed does not do this. What other folders, files, and/or registry settings need to be removed to remove all traces of LO from a machine where it has previously been run?

Obviously, user settings directory.

I’d hardly consider that obvious, since it’s typically in a hidden directory, but it does seem to work for what I’m trying to do.