warnings

I cleared the free space on the disk and received such a warning Did my 'completed with warnings' operation fail? Or was it successfully completed? YANITLA

I erased the unused disk space on my C:\ drive and when the task finished the status was "Completed with Warnings." I couldn't find a definition for this in Eraser's help section. What does it mean? Is there something I should be concerned about or something else I need to do? It doesn't make...