i am getting constant monitoring errors with no clue as how to fix them.  any suggestions?

Computer monitoring error

Occurrences
WSS 9/6/2015 7:41 PM
Details
Can only partially assess the health of this computer. The failing components are: Western Digital AFP\Definition.xml Western Digital Enclosure Monitor\Definition.xml Western Digital Backup Monitor\Definition.xml Western Digital Ethernet Link Monitor\Definition.xml Western Digital Software Update\Definition.xml Western Digital Storage\Definition.xml

Resolution
1. An error was encountered with the last health assessment.

2. Health assessment will be reattempted at the next scheduled time.

3. For more information, click the Get more information link.