Summary: How to fix the installation Error 1603
Related installation help: Troubleshooting Rhino 5 Installation
A wide variety of problems can cause 1603 errors. Please follow all the steps below.
Step 1: Perform Windows updates
Step 2: Install .NET 4.0 framework
Step 3: Install Rhino
Step 4: Uncompressing and Manually Installing
Still not working?
That's frustrating. We're sorry! Please email any log files from Step 3 to firstname.lastname@example.org