User impact: Users may see incorrect service names and descriptions in Services and the Event Viewer after upgrading to Windows 11.

More info: This issue is only impacting users who have upgraded to Windows 11 during or after June of 2025.

User interface impact only:

– Service name for Windows Advanced Threat Protection (Sense) shows as “Sense” in English instead of the localized text.

– Users attempting to view service descriptions under Service may see the following error or descriptions appear in English: “Failed to Read Description. Error Code: 15100”

– Event Viewer logs for Sense may show error text instead of properly formatted localized descriptions.

No functional impact:

– Device telemetry and reporting to Microsoft Defender for Endpoint portal aren’t impacted.

– No portal unavailability, alert delays, or API failures.

Current status: Validation of the code fix is continuing to progress, and due to the complex nature of the code developed to address the incorrect service names and descriptions, we’re still expecting the deployment to complete by March 2026. We’ll provide a more accurate timeline as one becomes available.

Scope of impact: This issue is impacting a subset of users who have upgraded to Windows 11 in or after June of 2025.

Start time: Tuesday, May 27, 2025, at 12:00 AM UTC

Root cause: A standard Windows update may be producing localization issues including incorrect service names and descriptions in Services and the Event Viewer for users who have upgraded to Windows 11 in or after June of 2025.

Next update by: Tuesday, January 6, 2026, at 7:00 PM UTC