Install Catia V5 R21 On Windows 11 'link' Direct

Choose where CATIA will store its runtime environment files. The default location is recommended. Click Next .

Once the installer finishes, the box that says "Launch CATIA V5 R21 now" and click Finish . You must configure the application executable before running it for the first time. Applying Compatibility to the Main Executable Install Catia V5 R21 On Windows 11

Windows 11 enforces strict security and driver signatures that can block legacy installers. Prepare your system with these steps: Choose where CATIA will store its runtime environment files

Insert your installation media or open the extracted setup folder. Once the installer finishes, the box that says

Because Windows 11 has tighter security and different underlying architecture than older OS versions, taking a few preparatory steps will prevent installation errors: A. Disable Windows Defender/Antivirus Temporarily

Solution: Right-click the CATIA shortcut, run it as an admin, and press > Options > General > Licensing . Ensure that the specific configuration checkboxes (like MD2, HD2, or AL2) match your active license file permissions.