sirKitKat

Glad to hear you are aware of this problem! The main problem that bothers me at the moment is that, when your computer restarts, the notification is gone and you have no way of knowing not all files are transferred. I suggest periodic scanning of the locked files if there are not free yet (every 30 seconds?) and a periodic scanning of the complete folder (every 5 minutes) to catch all small sync differences.

Using the free sync app, when you create a microsoft office document, save the file but keep it open, an error message appears from sync that the file is locked (in use by other application). If you then close the office application without saving, sync will never try to sync the file again until it is 'touched' System: both windows 10 I've changed the FileSyncDelay from 10 seconds to 30 seconds but problem did not resolved