Microsoft outage continues as planned fixes are not working as expected, company says
Microsoft said a patch improved stability on some servers as the outage disrupted more than 450 million paid commercial seats.
- On Thursday, November 12, 2026, a global Microsoft 365 outage disrupted Outlook, Teams, and Copilot across 74 countries, with Downdetector recording nearly 130,000 reports of Outlook issues at peak.
- Microsoft attributed the disruption to an "elevated load" caused by servers becoming "unexpectedly unavailable," creating a cascading failure across its infrastructure while stating there is "no indication this is the result of malicious or cyber activity."
- Government agencies and businesses worldwide reported significant operational delays. Japan's National Disaster Management Agency urged people to "please contact us by calling our main number," while the UK government implemented "robust contingency plans" to maintain essential services.
- By Friday, November 13, 2026, Microsoft reported "service degradation" affecting business and enterprise users as engineers struggled to restore stability. The company acknowledged that several fixes were "not taking as expected," leaving partial recovery for some customers globally.
- This incident underscores vulnerabilities within centralized cloud architectures, where a single component's failure compromises the entire service chain. Microsoft officials promised a comprehensive post-incident report detailing the root cause and mitigation strategies once the disruption is fully resolved.
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443 Articles
Microsoft Reports 'Marginal Success' Fixing Major Outage
Microsoft's email headache is dragging into a second day, and the fix is moving slowly. A widepread outage has knocked out Outlook, Teams, Copilot, and other Microsoft 365 tools for millions across at least 74 countries, disrupting banks, airlines, shorts, schools, and government offices from the US to Hong Kong....
Microsoft services are failing worldwide. Several repair attempts by the company have failed so far. What is known about the fault
Redmond (USA) – Outlook mailboxes are unavailable, emails arrive late, team calendars don't work, AI assistant Copilot is in trouble.
Friday's workday has been mostly a work in progress in many offices due to Microsoft's problems.
Although Microsoft says it is seeing signs of stabilisation after a global outage affecting its services, its systems have not yet returned to normal capacity. The outage, which was caused by a technical fault in its server infrastructure, is taking an unusually long time to resolve, and experts say it could be the worst business email outage ever. The company is gradually allowing traffic back onto its network and is making technical changes to…
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