Microsoft says services fully restored after hourslong global outage

Microsoft announced on Saturday, November 14, 2026, that its services were fully restored following a massive global IT outage that disrupted governments, healthcare systems, businesses, and transport networks across more than 70 countries and territories.

Global Disruption to Microsoft 365 Services

The disruption began around midday Thursday in the U.S., with monitoring website Downdetector recording a surge in complaints. Users across the globe lost access to core Microsoft 365 tools, including Outlook, Teams, and the AI assistant Copilot. Millions of customers were unable to send or receive emails, while other AI platforms including OpenAI's ChatGPT and Anthropic's Claude also experienced connection problems.

More than 430 million people use Microsoft 365 apps, according to Microsoft. Downdetector reported receiving outage reports from 74 countries and territories within an hour of the initial failure. Peak complaints included more than 130,000 users in the U.S. Reporting problems with Outlook on Thursday evening, while UK monitoring showed Teams problems spiking around 6:15 pm GMT on Thursday.

Government and Public Sector Impacts Worldwide

Governments, courts, and emergency services around the world activated contingency plans as the outage rippled through public infrastructure. In Britain, NHS England switched to long-standing measures, including paper records, and the National Pharmacy Association warned patients of delays in receiving medications and prescriptions. Police forces across England and Wales reported being unable to receive crime reports online, urging citizens to phone in urgent requests. Courts were also disrupted, forcing Judge Maurice Greene in Manchester to send jurors home during a trial.

International impacts were widespread. In Singapore, government Outlook services were hit before being fully restored by Friday night, according to the Government Technology Agency (GovTech), while emergency services and Singpass remained operational. Governments in Japan, Australia, Norway, and Greece also reported disruptions to various official operations, ministries, and agencies.

Microsoft's Response and Technical Explanation

Microsoft issued apologies for the disruption and confirmed that the incident was entirely technical in nature. The company stated that the outage was not related to cyber or artificial intelligence agents, explaining instead that the failure was introduced by an issue during an earlier network capacity upgrade that surfaced following a recent network change.

Because of the scale of demand, Microsoft engineers restored services gradually. The company noted that while this phased approach took longer, it helped ensure a stable restoration and validate stability at each stage. By Saturday, Microsoft updated its status to confirm full recovery for remaining customers and regions.

"We have completed our efforts to address the underlying issue of the incident and restored service to the remaining impacted customers and regions."

Microsoft

UK cyber minister Baroness Lloyd of Effra confirmed she had spoken with Microsoft UK chief executive Darren Hardman regarding the outage. She noted that the incident primarily affected back-office functions with limited reports of impact on frontline service delivery, though she acknowledged the situation was inconvenient and disruptive.

Infrastructure Resilience and Expert Analysis

The global failure prompted immediate scrutiny from experts regarding the world's heavy reliance on a single company's digital infrastructure. Jeremy Singer, a professor at the University of Glasgow’s School of Computing Science, observed that office workers experienced what felt like a virtual snow day while emphasizing the risks of depending on a single digital infrastructure and questioning whether we need more resilience in our IT ecosystem.

Microsoft stated that it will provide a full post-incident report once its review is complete.