If the objective is to acquire a data modeling tool without the high upfront cost of an enterprise license, there are "better" and legitimate pathways.

Software cracks modify the original executable code to bypass licensing checks. This process is opaque; users cannot verify what else the code modifier changed.

While erwin doesn't offer a permanent free version, check their academic program if you're a student or teacher.

Erwin Data Modeler is a professional data modeling tool used by enterprises worldwide. Version 9.7 (I assume "97" refers to 9.7) is a commercial product requiring a legitimate license. Downloading "full version gratis" from unauthorized sources typically involves:

Erwin Data Modeler is an industry-leading data modeling tool used for designing and managing data architectures. Version 9.7 (and the subsequent 2020/2022 releases) represents a significant evolution in the platform, integrating capabilities for:

Because it is an enterprise-grade tool, it carries a high licensing cost, which often drives individual users and small businesses to seek "gratis" or cracked versions.

erwin offers a 14-day free trial of Data Modeler through their official website. This is legal, safe, and includes full features.