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Microsoft Antimalware Engine Update

Updated: December 16, 2008

Applies To: Windows Server 2008 R2

The Microsoft Antimalware Engine version is updated frequently to detect and remove the latest spyware or other potentially unwanted software. The Microsoft Antimalware Engine must be started and functioning correctly for a scan to successfully complete.


Event ID Source Message


Microsoft-Windows-Windows Defender

%1 engine version has been updated.
%tCurrent Engine Version:%b%3
%tPrevious Engine Version:%b%4
%tUpdate Source:%b%6


Microsoft-Windows-Windows Defender

%1 has encountered an error trying to update the engine.
%tNew Engine Version:%b%3
%tPrevious Engine Version:%b%4
%tUpdate Source:%b%6
%tError Code:%b%11
%tError description:%b%12


Microsoft-Windows-Windows Defender

%1 Configuration has changed. If this is an unexpected event you should review the settings as this may be the result of malware.
%tOld value:%b%3
%tNew value:%b%4


Microsoft-Windows-Windows Defender

%1 engine has been terminated due to an unexpected error.
%tFailure Type:%b%5
%tException code:%b%6

Related Management Information

Microsoft Antimalware Engine

Core Security

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