Microsoft has acknowledged the presence of a non-threatening error event, labeled as Event ID 2042, in the Windows Firewall With Advanced Security logs following the installation of the June 2025 non-security preview update. This error, which appears as Config Read Failed with the description More data is available, occurs each time affected devices restart.
Understanding Event ID 2042
Event ID 2042 manifests in the Windows Event Viewer under the Windows Firewall With Advanced Security category. Despite its appearance, Microsoft assures users that this error does not compromise the functionality or security of the Windows Firewall. The firewall continues to operate effectively, maintaining its role in network protection and traffic filtering. The error is attributed to an incomplete feature under development within Microsoft’s firewall architecture, rather than any operational malfunction or security vulnerability.
Impacted Systems
The issue affects systems running Windows 11 version 24H2 with OS Build 26100.4484 that have installed the KB5060829 update released on June 26, 2025. Users of these systems may notice the recurring error entry in their security event logs upon each system restart.
Microsoft’s Response and Recommendations
Microsoft has categorized this issue as Confirmed in their official documentation, indicating active investigation. The company emphasizes that no user intervention is required, as the error is purely cosmetic and does not impact system performance or security. A resolution is in development and will be delivered through a future Windows update, though no specific timeline has been provided.
Guidance for Users and Administrators
Users and system administrators are advised to continue normal operations without concern for security implications. When reviewing security logs, they should note that Event ID 2042 is a known issue and does not necessitate troubleshooting. Monitoring official Microsoft update channels is recommended for announcements regarding the forthcoming fix.
Conclusion
While the appearance of Event ID 2042 in Windows Firewall logs may cause initial concern, Microsoft has confirmed that it is a benign issue resulting from an incomplete feature implementation. Users can rest assured that their firewall’s security functions remain intact, and a fix is forthcoming in a future update.
