FreeFileSync

Where FreeFileSync keeps its logs

FreeFileSync logs to %APPDATA%\FreeFileSync\Logs\ on Windows. 1 other Windows log location is recorded below, including paths for Older versions.

Paths are printed exactly as FreeFileSync writes them. Environment variables like %LOCALAPPDATA% and $XDG_STATE_HOME are never expanded, so a path can be pasted straight into a shell. Where a path differs between installer types or shipping flavours, each one is racked as its own card below - why that happens.

Finding your way around Windows.