: You must download all parts (e.g., Part 1, Part 2, Part 3, and your specific Part 4) into the same folder on your computer.
Multi-part RAR files are a single archive split into smaller pieces. download-call-duty-world-war-apun-kagames-biz-part04-rar
: If WinRAR says Part 4 is corrupt, delete that specific file and redownload it. : You must download all parts (e