Third-party repacks can sometimes trigger antivirus warnings or contain unwanted software.
If one part (like part09) is corrupted, the entire extraction will fail. Use a tool like WinRAR or 7-Zip to "Test" the archive.
This specific file naming convention is common on sites like Repack Games , where large game installs are split into smaller parts (e.g., .part01.rar to .partXX.rar ) for easier downloading. Essential Technical Requirements