Microsoft Defender for Endpoint

Troubleshoot Security Intelligence Not Updated

4 September 2026Doc update+1 / −1 lines

In brief

The troubleshooting article now links to a revised Microsoft Support page for resolving Windows Update problems.

What Defender admins need to know

Administrators have updated guidance to consult when investigating security intelligence update issues.

Summaries are generated from the documentation change itself.

Documentation change

View full page diff

View on Microsoft Learn

The comparison below shows only the changed extract. Use the full-page view for complete context.

  - The Windows Update service is having issues.

    Review [Guidance for troubleshooting Windows Update issues](/troubleshoot/windows-client/installing-updates-features-roles/troubleshoot-windows-update-issues) and [Troubleshoot problems updating Windows](https://support.microsoft.com/windows/Windows/Deployment/Updates-Lifecycle/troubleshoot-problems-updating-windows-188c2b0f-10a7-d72f-65b8-32d177eb136c)windows).

@@ -76,4 +76,4 @@ The following screenshot shows the error **Signature Update failed**.        - The Windows Update service is having issues. -        Review [Guidance for troubleshooting Windows Update issues](/troubleshoot/windows-client/installing-updates-features-roles/troubleshoot-windows-update-issues) and [Troubleshoot problems updating Windows](https://support.microsoft.com/windows/troubleshoot-problems-updating-windows-188c2b0f-10a7-d72f-65b8-32d177eb136c).+        Review [Guidance for troubleshooting Windows Update issues](/troubleshoot/windows-client/installing-updates-features-roles/troubleshoot-windows-update-issues) and [Troubleshoot problems updating Windows](https://support.microsoft.com/Windows/Deployment/Updates-Lifecycle/troubleshoot-problems-updating-windows).