Hi Pavan, I had our Windows team (our instance of WPM is hosted on WIN2012) change the permissions of the SEUM uses to local_admin so they would have routine access to the (company internal & 1 or 2 public facing) websites we monitor. "False" alerts have significantly decreased! I don't have a metrics number, but I would say they have been reduced by 80%.
Hope this works for you, and your team is able to change permissions on the WMP node.