Rename the playerped.rpf to playerped_1.0.7.0_ORIGINAL.rpf (or your version number). Do not delete it. Step 3: Use a Dedicated Backup Command (Advanced) For users comfortable with Command Prompt, create an MD5 checksum to verify future backups:

Introduction: Why Every GTA 4 Modder Needs a Backup Strategy Since its 2008 release, Grand Theft Auto IV has maintained a passionate modding community. Unlike the more streamlined GTA V , Rockstar’s Liberty City runs on a notoriously fragile file system. One wrong edit, and your game crashes on startup. At the center of this fragility lies a single, critical file: playerped.rpf .

Rockstar released several patches for GTA IV (1.0.0.0 to 1.0.7.0 for the main game, and 1.1.1.0 to 1.1.3.0 for Episodes from Liberty City ). Each patch changes the internal structure of playerped.rpf . A mod designed for patch 1.0.4.0 will almost certainly crash patch 1.0.7.0.

@echo off set source="C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto IV\pc\models\cdimages\playerped.rpf" set dest="C:\GTA4_Backups\playerped_%date:~-4,4%%date:~-10,2%%date:~-7,2%_%time:~0,2%%time:~3,2%%time:~6,2%.rpf" copy %source% %dest% echo Backup saved to %dest% pause Run this before every mod install. It will save you literal days of reinstalling. The search term gta+4+playerpedrpf+backup+upd represents a rite of passage for GTA IV modders. You have either corrupted your game, updated to a new patch, or lost your original files. The solution is never to panic, but to adhere to a strict backup discipline.