SteamApps\common\Grand Theft Auto IV\GTAIV\pc\models\cdimages Copy, Don't Move : Right-click playerped.rpf and select Create a "Backups" Folder
Tip: If you plan on heavily modding your game, copy the entire cdimages folder. This keeps backups of your vehicles ( vehicles.img ), weapons ( weapons.img ), and pedestrian models ( pedprops.img ) safe in one place. The Clean Alternative: Using OpenIV’s "mods" Folder gta 4 playerped.rpf backup