You must have all other parts (e.g., part01 through part05) in the same folder to successfully extract the contents.
For Revit 2023, the full installation package is typically around 12 GB . Common Installation Issues 2023.1.1.X64.part04.rar
Users frequently report errors when installing this specific update: You must have all other parts (e
Fixes for various components like the Autodesk Identity Manager and Cloud Models. File Structure & Extraction As a .part04.rar file, it cannot be used in isolation: 2023.1.1.X64.part04.rar
The installer may prompt for an rvt.msi file if it detects an unexpected existing file version.
Specifically version 23.1.10.4. Generative Design for Revit: Version 23.4.4.0.