This article is for Rhino 5. A similar article is available for Rhino 3 and 4.
Note - Nearly all of the problems and fixes listed on this page can be avoided if you start with getting Windows fully up to date with important updates using Windows Update, before installing Rhino.
Reporting Install Problems - The Rhino V5 installer will display a log file when the installation process fails. This log file is very helpful to our technical support in solving any problems you may have.