Why do I get this error message during installation:“This processor type does not support this installer, please contact your product retailer”?

This error message denotes the installer is incompatible with your Windows.

Gaaiho 3 supports 32-bit and 64-bit operating systems respectively, so we provide two different installers. Please download the correct installer based on your Windows operating system.

Related Questions: How to tell 32-bit system from 64-bit system?