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Event ID: 2001 Source: MicrosoftAntimalware

Microsoft Antimalware has encountered an error trying to update signatures.
New Signature Version:
Previous Signature Version:
Update Source: Microsoft Update Server
Update Stage: Search
Source Path:
Signature Type: AntiVirus
Update Type: Full
Current Engine Version:
Previous Engine Version: 1.1.7104.0
Error code: 0x8024402c
Error description: An unexpected problem occurred while checking for updates. For information on installing or troubleshooting updates see Help and Support.
Error code 0x80072ee7 - We have seen this message recorded when there was a temporary issue with Internet connectivity. Once the connectivity was restored, the problem went away.
According to Microsoft, this error occurs if there is a problem while trying to update definitions.

Recommended user action:
- If you are having problems updating definitions, the following steps can help:
- Ensure your configuration for definition updates is correct. For more information, see Configuring definition updates (
- Check your WSUS configuration settings. For more information, see Updates and Windows Server Update Services Definition Updates (
- Try to update the definitions manually by downloading the full definitions files. To download the definitions, see the alternative download location (

For more information about this error, review the entries in the %Windir%\WindowsUpdate.log log file.
T774005 provides a list of error message recorded in this event and suggestions on how to troubleshoot each of them.

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