Google Drive users have a path to recover missing files from the service, but it isn’t foolproof, requires local storage, and may need a trip to the command line interface.
Google Drive
In November, users began complaining that months of files began disappearing from Google Drive. A fix has finally arrived, but it isn’t as simple as updating the app.
Google Drive offers possible fix for missing files, but isn’t guaranteed
Google Drive offers possible fix for missing files, but isn’t guaranteed