The new launcher.exe conflicts with older Social Club versions. Fix: Delete the Social Club folder inside C:\Program Files\Rockstar Games\Launcher . Re-verify game files to force a fresh Social Club install.
Once the launcher is installed, you need to link or buy the game. Red Dead Redemption 2 Launcher-exe Download -NEW
The latest version of the is the only official and safe method to launch Red Dead Redemption 2 The new launcher