Sharepoint KB2580174 Alert remains after PSConfig upgrade

Check Event Viewer for Error 2138 – Drives running out of space.

Sharepoint will report health errors if the C:\ has less space than 2x installed RAM.

To Disable:
SharePoint Central Admin > Monitoring > Health Analyzer > Review rule definitions > under Availability > ‘Drives are running out of free space’

Link: Technet