Summary: How to fix the installation Error 1714
Related installation help: Troubleshooting Rhino Installation
The log file shows “Rhino Installer Engine – Error 1714. The older version of Rhino Installer Engine cannot be removed. Contact your technical support group. System Error 1612.”
This is fixed with a nice tool from Microsoft. Please download and follow these instructions:
After fixing the issue, then try to install Rhino again.