Microsoft Copilot down: AI assistant not working in major outage

Tuesday 09 December 2025 11:27 GMT

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Copilot, Microsoft’s AI assistant, has been hit by a major outage.

The system can be used in its own but is also integrated into the company’s other apps.

It went down on Tuesday morning UK time, according to tracking website Down Detector.

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Microsoft Copilot down: AI assistant not working in major outage

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