For most of the office suite (and for PDF files), using Windows LiveSync works perfectly. However, because Outlook and OneNote keep open a file, LiveSync is very messy with plenty of version conflicts ...
Crucially, Joplin saves all my notes in Markdown. Unlike OneNote, my notes are now universally readable in plain text (.md).
The first step is to check for Office updates manually. If the update is available, download and install it. Open Microsoft OneNote and go to File > Account. Now, click Update Options > Update Now. 2] ...