If the launcher refuses to update the game, the launcher itself might be the "file" that needs fixing.
Temporarily disable your Windows Defender or third-party antivirus (like Avast or McAfee) while the download is running. These programs often flag GTA V’s large data packets as suspicious. 5. Manual Download of the Rockstar Games Launcher gta 5 error fix file download for pc
Right-click GTA V > Properties > Local Files > Verify integrity of game files. If the launcher refuses to update the game,