If you are struggling with performance, the community also suggests limiting the shadow quality in the game settings to achieve better results, even on this version.
Your current save files may not be backward compatible. Locate your saves in C:\Users\YourName\AppData\Local\Rockstar Games\GTA IV\savegames and copy them to a safe folder. gta iv 1.0.4.0 download
If you have a retail or older digital version, you can apply the standalone patch: If you are struggling with performance, the community
The tool will ask which version you wish to target. Select 1.0.4.0 . If you are struggling with performance
Install (e.g., xlive.dll ) to bypass Games for Windows Live, which is often required for older versions to run.