Fix Office Sign-In Fails on Pooled Azure Virtual Desktop
Question details
Users are unable to sign in to Microsoft Office applications when operating within a pooled Azure Virtual Desktop environment.

- Product
- Microsoft Office
- Device & OS
- Azure Virtual Desktop / Windows
- Scenario
- Attempting to launch and authenticate into Microsoft Office applications in a pooled virtual desktop session.
- Observed behavior
- The sign-in process fails entirely. Event Viewer logs display an error stating that Microsoft.AAD.BrokerPlugin settings failed to load, triggering error code -2147024893.
Verify whether the issue affects all users in the pooled environment or just specific user profiles, and keep the exact Event Viewer logs handy for your IT department.
Escalate to IT Administrator for a Microsoft 365 Support Request
Because standard Azure Active Directory broker troubleshooting is often insufficient for pooled virtual environment errors, escalating the issue via the Microsoft 365 admin center is the officially recommended approach.
Error code -2147024893 related to the Microsoft.AAD.BrokerPlugin in pooled Azure Virtual Desktop (AVD) setups usually points to complex profile roaming or token caching issues (such as with FSLogix).
Resolving this requires backend diagnostics from Microsoft support, which can only be requested by a tenant administrator.
Open Event Viewer, navigate to the Application and Services Logs, and export the exact logs showing the Microsoft.AAD.BrokerPlugin failure (error -2147024893).
Provide the exported diagnostic logs to your organization's IT administrator to prove the AAD broker plugin is failing upon sign-in.
The IT administrator must log in to the Microsoft 365 admin center, navigate to the 'Support' section on the left sidebar, and click 'New service request' to initiate an escalation.

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- 1. Download the Installer: Visit the WPS Office website and download the free installation package for Windows.
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Frequently Asked Questions
What does error code -2147024893 mean in Event Viewer?
This specific error code indicates a failure in loading or registering the Microsoft.AAD.BrokerPlugin package. It means the system cannot process Azure Active Directory authentication, thereby blocking access to Microsoft 365 apps.
Why does this Office sign-in issue primarily affect pooled Azure Virtual Desktop machines?
Pooled environments use dynamic profile management systems like FSLogix. If temporary profile data, authentication tokens, or broker cache directories are not properly synced or excluded during a session transition, the sign-in plugin gets corrupted.
Can an end-user fix the AAD Broker Plugin error manually?
Generally, no. Fixing broker plugin issues in a pooled virtual desktop requires administrative access to re-register Appx packages across the server or adjust Microsoft 365 backend configurations, which must be handled by an IT administrator.




