Windows 11 Security Update KB5052085 is stopping Oracle Database Connection

Question

After the automatic installation of Windows 11 Security Update KB5052085 (06 March 2025), users were unable to connect to the Oracle database server (Legacy ERP Server). However, Windows 10 users can connect without any issues.

Error Message: "Application Error SQL Error Contact your System Administrator" and "Application Error.

Note: Its an Oracle 9i database.

Your Kind support is requested.

Answer 1

Hello,

Thank you for posting in Microsoft Q&A.

Based on the description, I understand your question is related to KB5052085.

Verify if the Oracle database server version is fully compatible with Windows 11, try update Oracle client and drivers on the Windows 11 machines. Check firewall settings, network policies, and any other network-related configurations.

If the issue persists, consider rollback this Windows 11 Security Update KB5052085 temporarily to see if it resolves the issue.

As currently there is no Microsoft official info about update causing this error, it is also recommended to report this issue to Microsoft, use the Feedback Hub app. To learn more, see Send feedback to Microsoft with the Feedback Hub app:

https://support.microsoft.com/en-us/windows/send-feedback-to-microsoft-with-the-feedback-hub-app-f59187f8-8739-22d6-ba93-f66612949332

Have a nice day.

Best Regards,

Molly

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