SBS 2008 / SBS 2011 remove benign items from reporting

Download and extract the SBSAlertsCleanup.
Launch an elevated PowerShell prompt.
Navigate to files.

.\SBSAlertsCleanup.ps1 –Action install [enter]

You will see “Changed database context to ‘SBSMonitoring’

Listing current Exclusions
.\SBSAlertsCleanup.ps1 –Action ListExclusions

Note: If you receive an error – SBSAlertsCleanup.ps1 cannot be loaded…. is not digitally signed.
Right-Click the ps1 file, click ‘Unblock’ in the security section under the General Tab.

Source – The Official SBS Blog