GTA IV is an older game that relies on DirectX 9. Ensuring all the correct packages are installed is crucial.
Right-click inside the folder, go to .
Windows security features often block SecuROM from writing to the registry or verifying files.
The RMN60 error often occurs in DirectX 10 or 11 rendering modes. GTA IV was built for DirectX 9. Forcing DX9 can eliminate the depth render target issue. how to fix gta 4 fatal error rmn60
is a masterpiece of storytelling, but its PC port is notoriously fragile. Even in 2026, players firing up the game via Steam or the Rockstar Launcher are often greeted by a dreaded black screen and a small pop-up window reading:
90% of RMN60 cases are solved by forcing the game to limit its own VRAM usage. You do this by creating a commandline.txt file in the game’s root directory.
-norestrictions -nomemrestrict -availablevidmem 2048 -percentvidmem 100 GTA IV is an older game that relies on DirectX 9
In the game folder, locate the main executable file named . Right-click GTAIV.exe and select Properties . Switch to the Compatibility tab.
Always use to start your game instead of the standard executable.
Many modern antivirus programs (including Windows Defender) flag older SecuROM DRM files—used by GTA IV—as malware (specifically Trojans or HackTools). If the antivirus quarantines these files, the game launches, realizes the security check is missing, and throws RMN60. Windows security features often block SecuROM from writing
Navigate to your GTA IV installation folder (usually found in Steam\steamapps\common\Grand Theft Auto IV\GTAIV ).
Because SecuROM is obsolete and problematic on Windows 10/11, the most effective fix is often to bypass the DRM entirely by replacing the main executable with one that does not require a disc check.
By following these steps—specifically the tweak—you should be able to bypass the RMN60 error and enjoy everything Liberty City has to offer.
Many users mistakenly attempt to boot the game by double-clicking raw game engine assets.
How to Fix GTA 4 Fatal Error RMN60 (Complete Guide for 2026)
