How to Fix GTA 4 Fatal Error RMN60: A Complete Guide Even years after its release, Grand Theft Auto IV remains a fan favourite for its gritty atmosphere and physics-heavy gameplay. However, running the game on modern versions of Windows often leads to a frustrating roadblock: the .

: Community patches like FusionFix can resolve various launch errors and performance issues that standard updates might miss.

After restarting, test GTA IV again.