Run new office onenote with admin permissions and powershell with admin permissions
Version Windows 10 Pro
Version 20H2
Compilation 19042.631

Error Unable to find type [Microsoft.Office.InterOp.OneNote.HierarchyScope].
At C:\GIT\ConvertOneNote2MarkDown-master\ConvertOneNote2MarkDown-v2.ps1:357 char:31
... erarchy("", [Microsoft.Office.InterOp.OneNote.HierarchyScope]::hsPage ...
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
CategoryInfo : InvalidOperation: (Microsoft.Offic....HierarchyScope:TypeName) [], RuntimeException
FullyQualifiedErrorId : TypeNotFound