Searching for a "cracked" or free download of CATIA V5 can be risky and often leads to non-functional software or security threats
Dassault Systèmes offers a dedicated Student Edition for around $99 (price may vary by region). It includes the core CATIA V5 features needed for learning and academic projects. 2. CATIA for Startups
For a step-by-step on the official setup process, you can refer to guides by GoEngineer SEACAD Technologies specific professional project CATIA V5 or V6? which version to choose? - Ohmycad