The most direct solution is to trick the game into thinking it is running on an older, supported version of Windows.
Sometimes the Social Club installation fails during the initial game installation, leading to RMN60. Go to your GTA IV installation folder. Open the Redistributables folder. Locate Social Club Installer.exe . it as an administrator. If it is already installed, select Repair or Reinstall . Method 4: Update DirectPlay (DirectX) how to fix gta 4 fatal error rmn60