If you are looking to use Prepar3D, the only secure and legal way is through the official channels:
: Avoid downloading software from "free download" sites matching this query, as they pose a high risk to your computer's security.
: Prepar3D is a commercial flight simulation platform developed by Lockheed Martin. It is a paid product and does not have a "free" Professional Plus version for general public download.
: Sites offering "free" or "cracked" versions of high-end software like Prepar3D v4.0.23 often bundle the downloads with:
: Hidden scripts that can steal personal data or hijack system resources. Adware : Persistent pop-ups and browser redirects.