Before beginning, ensure your system meets these specifications and settings: Operating System:
Because CATIA V5 R21 was not built natively for Windows 11, you may encounter specific errors during your first launch. Issue 1: "Click OK to Terminate" Error on Launch Install Catia V5 R21 On Windows 11
: You must install both x86 and x64 versions of the C++ 2008 (VC9) and 2010 redistributables. Install Catia V5 R21 On Windows 11
. However, older versions like R21 are frequently installed on modern systems using the steps below. Dassault Systèmes 1. Pre-Installation Requirements Install Catia V5 R21 On Windows 11