Microsoft Defender Antivirus records event IDs in the Windows event log. Potentially unwanted application blocking.Fast learning (including Block at first sight).You can also visit the Microsoft Defender for Endpoint demo website at demo.wd. to confirm the following features are working: Internal Microsoft Defender Antivirus client error codes (used by Microsoft during development and testing).Microsoft Defender Antivirus client error codes.Microsoft Defender Antivirus event IDs (these apply to both Windows 10 and Windows Server 2016).If you encounter a problem with Microsoft Defender Antivirus, you can search the tables in this topic to find a matching issue and potential solution. Review event logs and error codes to troubleshoot issues with Microsoft Defender Antivirus
