Error - Unable to Create Another Ray Buffer Page File

I have received the error "Insufficient diskpace - unable to create another ray buffer pagefile". What should I do?

This can happen when the minimum free hard disk space is less than the amount required for the Ray Buffer pagefile. For more information, please read FRED’s Online Help topic, “Troubleshooting – Unable to allocate memory for RayBuffer (RBV)” or our related article: FRED Preference Optimization.