Microsoft fixes bug that removed Copilot buttons in Outlook

BleepingComputer

July 2, 2026 at 12:15 PM

Overview

Microsoft has addressed a bug that caused the Copilot Chat and related buttons to vanish from Classic Outlook for users with the Copilot Chat (Basic) license on Windows. This issue affected how users could access and utilize the Copilot features, potentially disrupting their workflow. The fix ensures that users can now regain access to these functionalities, which are designed to enhance productivity within Outlook. This is particularly important for organizations relying on these tools for efficient communication and task management. Users are encouraged to check their Outlook applications to confirm that the fix has been applied and that the Copilot features are functioning as intended.

Key Takeaways

Affected Systems: Classic Outlook for Windows with Copilot Chat (Basic) license
Action Required: Microsoft has released a fix to restore the Copilot buttons in Classic Outlook.
Timeline: Disclosed on October 2023

Original Article Summary

Microsoft has fixed a known issue causing the Copilot Chat or Copilot buttons in Classic Outlook to disappear for Windows users with the Copilot Chat (Basic) license. [...]

Impact

Classic Outlook for Windows with Copilot Chat (Basic) license

Exploitation Status

No active exploitation has been reported at this time. However, organizations should still apply patches promptly as proof-of-concept code may exist.

Timeline

Disclosed on October 2023

Remediation

Microsoft has released a fix to restore the Copilot buttons in Classic Outlook.

Additional Information

This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.

Related Topics: This incident relates to Windows, Microsoft.

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