Outage 11/12/26

No Microsoft incident specifically affecting work or school sign-ins in Austin is publicly confirmed for November 12, 2026; your Microsoft 365 administrator should check your organization’s tenant-specific Service health dashboard.

Check whether this is an outage

Ask a Microsoft 365 administrator to:

1. Sign in to the Microsoft 365 admin center.
2. Select Health → Service health.
3. Review:
   • Active issues Microsoft is working on
   • Issues for your organization to act on
   • Microsoft 365 Apps, Microsoft Entra ID, and other affected services
4. Open any incident to see its affected users, start time, status, and Microsoft’s latest update.
5. If nothing is listed, select Report an issue and submit the black-screen sign-in problem.

Service Support admins and Helpdesk admins can also view this dashboard. If administrators also receive a black screen and cannot enter the admin center, use Microsoft’s unauthenticated Service Health Status page. Microsoft identifies the admin-center dashboard as the detailed, tenant-specific source for incidents.^1^

The broad public Microsoft status currently reports no general issue, although crowd-sourced reporting shows some US Microsoft 365 problems. Those reports do not establish an Austin-area or tenant-specific outage.^2^^3^

If only the desktop Office applications show a black screen

First try the same work or school account at Office.com sign-in.

• Web sign-in also fails: contact your organization’s Microsoft 365 administrator. They need to check Service health and whether the account is locked, disabled, or affected by an authentication policy.
• Web sign-in works: the symptom is probably confined to the Windows device. Run the Microsoft 365 Sign-in troubleshooter from the Get Help app; Microsoft documents it as the automated diagnostic for common Office sign-in failures.^4^

If that does not resolve it, repair the Microsoft Entra Web Account Manager package used by work accounts:

1. Close all Office applications.
2. Right-click Start and open Windows PowerShell (Admin).
3. Run:

if (-not (Get-AppxPackage Microsoft.AAD.BrokerPlugin)) {
    Add-AppxPackage -Register `
      "$env:windir\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\Appxmanifest.xml" `
      -DisableDevelopmentMode -ForceApplicationShutdown
}
Get-AppxPackage Microsoft.AAD.BrokerPlugin

4. Confirm that package information is returned without errors.
5. Restart Windows and try signing in again.

Microsoft documents this repair specifically for the Microsoft Entra WAM plug-in used by organizational or work accounts.^5^

If the sign-in window remains black

Have your IT administrator open Task Manager, expand the affected Office application, and look for msedgewebview2.exe processes while the sign-in window is open.

• If WebView2 processes do not appear, application-control or endpoint-security software may be blocking them.
• If they briefly appear and disappear, antivirus or endpoint detection software may be terminating the renderer.
• Check Event Viewer → Windows Logs → Application/System for WebView2 initialization failures, AppLocker/WDAC blocks, or TLS and network-policy failures.

Microsoft lists these as diagnostics for blank embedded WebView2 windows; any security-policy exception should be handled by your organization’s IT team rather than disabling protection locally.^6^

References

1. How to check Microsoft 365 service health
2. Microsoft 365 service health status - Microsoft 365 Enterprise
3. Microsoft 365 down? Current problems and outages | US
4. Get Help for Microsoft work or school account users | Microsoft Support
5. Fix authentication issues in Microsoft 365 apps when you try to connect to a Microsoft 365 service
6. Prevent security tools from blocking WebView2 apps