Install Catia V5 R21 On Windows 11 May 2026

Follow the on-screen prompts for the destination folder (default is usually C:\Program Files\Dassault Systemes\B21 ).

Again, set it to run in compatibility mode for and check Run as Administrator . Install Catia V5 R21 On Windows 11

Check and click Apply . 3. Execute the Installation Double-click setup.exe to begin. Follow the on-screen prompts for the destination folder

You must have Administrator rights to install and configure licenses. Step-by-Step Installation Guide 1. Prepare the Installation Media Step-by-Step Installation Guide 1

Because R21 is an older release, you should use the : Navigate to the extracted folder and find setup.exe . Right-click setup.exe and select Properties . Go to the Compatibility tab.

Officially, Dassault Systèmes supports V5 releases starting from on Windows 11. Older versions like R21 are not officially certified for Windows 11 but can still function through compatibility layers. OS: Windows 11 64-bit (Ensure it is fully updated).

Check and select Windows 7 or Windows XP (Service Pack 3) .