Windows 11 Fixed | Install Catia V5 R21 On

Open the extracted folder and navigate to the folder containing setup.exe . Right-click setup.exe and select . Navigate to the Compatibility tab.

: If the installer fails to start, right-click the installer, go to Properties > Compatibility , and set it to Windows XP (Service Pack 3) Hawk Ridge Systems Troubleshooting Common Issues Program Not Starting : Some users have found that Windows 11 version install catia v5 r21 on windows 11 fixed

Windows 11 refuses to run the installer because of the old signature. Here is how to bypass it without disabling all security. Open the extracted folder and navigate to the

Since R21 uses old OpenGL standards, ensure your Nvidia/AMD drivers are up to date. If the screen flickering persists, go to Tools > Options > General > Display > Performance inside CATIA and disable "Hardware Acceleration." Conclusion : If the installer fails to start, right-click