Microsoft has made Copilot Cowork generally available worldwide to Microsoft 365 Copilot customers. Microsoft has made Copilot Cowork generally available worldwide to Microsoft 365 Copilot customers, following a three-month preview through its Frontier program. More than half of the Fortune 500 used Copilot Cowork during the preview, according to Microsoft. Other named users included Accenture, Avanade, Advance Local, Capital Group, Koch, Ooredoo Qatar, and Zurich Insurance.