bleeping-computer · Crawled Jul 5, 2026
Microsoft fixes bug that removed Copilot buttons in Outlook
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Microsoft resolved a bug that caused Copilot buttons to disappear in Classic Outlook for Windows users with the Copilot Chat (Basic) license. The issue was fixed via a service update on June 29, 2026, and users are advised to restart Outlook or update to the latest build. Microsoft is also investigating Outlook crashes linked to Kaspersky Antivirus's Kaspersky Mail Checker (mcou.dll).
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