Related information:
- Restoring from an automatic backup: The Windows version of Joplin includes the backup plugin. By default, backups are stored in
C:\Users\YourUserName\JoplinBackup. See the plugin's "restore" guide for details. - Manually recovering data from OneDrive: With the OneDrive sync target, notes deleted by a Joplin sync should be moved to the OneDrive recycle bin. If restoring from an automatic backup fails, it should be possible to restore using the data on OneDrive (though more difficult). I can try to provide instructions for restoring from the OneDrive recycle bin on request.