Oh yes I have one sorry.
I don't have any of these tough
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiersHKEY_CURRENT_USER\Software\BitTorrent SyncHKEY_LOCAL_MACHINE\SOFTWARE\BitTorrent Sync
It's been months since I installed BitTorrent Sync and I still have this file written every minute. All of your proposed solutions above don't work. Please provide a real solution to delete permanently this file.