SharePoint 2010: Drives Are at Risk of Running out of Free Space

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The SharePoint Health Analyzer detected a condition requiring your attention. Drives are at risk of running out of free space

I could not understand why and made some searches. I found on TechNet that this is a false alert, and it can be ignored.

Available drive space is less than five times the value of physical memory. This is dangerous because it does not provide enough room for a full memory dump with continued operation. It also could cause problems with the Virtual Memory swap file

Examine the failing servers and delete old logs or free space on the drives. For more information about this rule, see http://go.microsoft.com/fwlink/?LinkID=142688.

The issue is you have a server with lots of physical ram. SharePoint calculates this multiplys by 5 and expects that amount of free space on your C drive even though SharePoint is probably not on your C drive.

  • Go into the SharePont Central Administration and click Monitoring : 
  • Go into review rule definitions 
  • Scroll down into the drives are at risk running out of free space
  • Disable the "Enabled option" and the error will disappear