– Dassault’s official stance: CATIA V5 R21 is not validated on Windows 10/11. You’re on your own.
the CATIA R21 ISO (right-click ISO → Mount ).
: Locate the setup.exe file within the extracted folder (typically in a subfolder named "1"). Right-click it and select "Run as administrator" to ensure it has the necessary permissions to modify system directories. Install Catia V5 R21 On Windows 11
Based on community feedback and testing:
Once completed, uncheck the box that says "Launch CATIA V5 R21 now" and click . Step 3: Setting Up Post-Installation Compatibility – Dassault’s official stance: CATIA V5 R21 is
Even though CATIA V5 R21 was initially designed for older operating systems, modern hardware easily handles its base requirements. Before you begin, ensure your PC meets the following: Windows 11 (64-bit recommended).
CATIA V5 R21 can work without an internet connection. In fact, disconnecting from the internet during startup can sometimes resolve license validation issues. : Locate the setup
Create those folders manually.
How to Install CATIA V5 R21 on Windows 11: A Step-by-Step Guide
The CATIA V5 installation wizard splash screen will appear. Click to begin.