Event ID: 2004

  • Article

Applies To: Forefront Endpoint Protection

Event ID 2004 — Forefront Endpoint Protection Client

This event is logged in the System log.

Details

Product

Microsoft Malware Protection

ID

2004

Source

Microsoft Antimalware

Version

3.0

Symbolic Name

MALWAREPROTECTION_SIGNATURE_REVERSION

Message

Forefront Endpoint Protection client has encountered an error trying to load signatures and will attempt reverting back to a known-good set of signatures.

  • Signatures Attempted: Current, Backup

  • Engine Type: <Engine type>

  • Error Code: <Error code>

  • Error description: <Error description>

  • Signature version: <Definition version>

  • Engine version: <Engine version>.

Explanation

The Forefront Endpoint Protection client attempted to download and install the latest definitions file and failed. This error can occur if Forefront Endpoint Protection client has encountered an error while trying to load the definitions or if the file is corrupt. Forefront Endpoint Protection client will attempt to revert back to a known-good set of definitions.

User Action

To troubleshoot this event, use the following steps:

  1. Restart the computer and try again.

  2. Check Configuring definition updates (https://go.microsoft.com/fwlink/?LinkId=214996).

  3. Manually download the latest definitions from the Microsoft Malware Protection Center (https://go.microsoft.com/fwlink/?LinkID=200965).

    Note that the size of the definitions file downloaded from the Microsoft Malware Protection Center can exceed 60 MB and should not be used as a long-term solution for updating definitions.