Microsoft 365 Alert – Service Degradation – Microsoft Defender XDR – Some may users see incorrect service names and descriptions in Services and the Event Viewer upon upgrade to Windows 11 – ONGOING

24/11/2025 08:00:00 AM

NHSmail Reference: INC46688866

Microsoft Reference: DZ1189321

Issue Status: ONGOING

Issue Description: Some may users see incorrect service names and descriptions in Services and the Event Viewer upon upgrade 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 Update: 08/12/2025 10:00:00 AM – Microsoft are continuing to validate the fix’s effectiveness and anticipate full deployment by March 2026.

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

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, December 9, 2025, at 7:00 PM UTC