Far Cry 4 Unknown File With Readfile-- [2021] «Tested | 2025»

Players have found several ways to resolve this and get back to the story:

The most frequent cause of this error is a corrupted game cache. During installation or an update, data packets can become mismatched or improperly downloaded. When the game reaches a point where it must "read" these specific assets—such as a texture, a sound file, or a map segment—it encounters an "Unknown File" and terminates the process to prevent a system-wide crash. Users on platforms like Steam or Ubisoft Connect often resolve this by using the "Verify Integrity of Game Files" feature. This tool scans the local directory, identifies the discrepancy, and re-downloads only the damaged files. Far Cry 4 Unknown File With Readfile--

Since corrupted files are the leading cause, this is your first line of defense. Players have found several ways to resolve this

The most frequent cause reported by players is a conflict with Microsoft OneDrive. Because Far Cry 4 saves configuration data in your user "Documents" folder, OneDrive's synchronization can "lock" these files, preventing the game from reading them. Users on platforms like Steam or Ubisoft Connect

The "Readfile" function often fails due to lack of permission.