Install Catia V5 R21 On Windows 11 Fixed Now

Share your CATInstall.log file (found in %temp% ) in the comments below.

Installing CATIA V5 R21 on Windows 11 is not a "next, next, finish" process. It requires bypassing expired certificates, manually seeding VC++ libraries, and tricking the OS compatibility layer. install catia v5 r21 on windows 11 fixed

: If the application hangs, try changing the shortcut's target path to launch CNEXT.exe directly instead of the standard CATSTART.exe . Common Issues & Troubleshooting Share your CATInstall