This message is intended to inform end users that some external file, modification of game save data, exploit or cheat/hack, or alterations to the game have been detected by the Dark Souls III server team and that the end users' account/profile has been flagged for further investigation.
'Invalid Game Data' warning message on Main Menu after starting up Dark Souls III You can do this by going to control panel and clicking on Appearance and Personalization or File Explorer Options in Windows 10, click on the 'View' tab and check the box for 'Show hidden files, folders and drives' then press ok.
