While Windows 11 has some built-in support, it often struggles with multi-part or password-protected RARs. It is best to use a dedicated utility: Extracting Multi-Part RAR Archives - Newshosting Support

Ensure you have sc23655-CK2DR.part1.rar , sc23655-CK2DR.part2.rar , and sc23655-CK2DR.part3.rar in addition to your Part 4.

To successfully access the contents, follow this comprehensive guide on how to manage and extract split RAR files. 1. Preparation: Gather All Parts

All files must have the exact same name prefix (everything before .partX.rar ). If any file was renamed during download, rename it back to match the others exactly.

Place every single part into the same directory on your computer. If one part is missing or in a different folder, the extraction will fail with a "Missing Volume" error. 2. Required Software