It’s usually best to keep these checked for a standard installation.
If you are looking for this link today, proceed with the wisdom of a veteran architect:
To download V-Ray for SketchUp 2021 , it is essential to use official channels to ensure software security and license compatibility. While the user specifically asked for "V-Ray 4.2," it is important to note that was the primary version released for and optimized for SketchUp 2021 Official Download Sources Chaos Group Official Portal : The most reliable way to download V-Ray is through the Chaos Download Center
The only authentic source for the is the Chaos Group official website.
: Close SketchUp completely before running the installer to avoid installation errors. Run Installer : Double-click the downloaded (Windows) or (Mac) file. Windows users should right-click and select "Run as administrator" Version Selection : During the "Host App Version" step, ensure SketchUp 2021 is checked. Advanced Options