Follow-Up: Microsoft Says Services Fully Restored After Global Outage, Remaining Customers and Regions Back Online
Microsoft said on the morning of November 14 that the global Microsoft 365 outage that began on November 12 has been fully restored, announcing that it had completed its work to address the underlying issue and restored service to the remaining impacted customers and regions. In an update on its Microsoft 365 status page and official account, the company said: "We have completed our efforts to address the underlying issue of the incident and restored service to the remaining impacted customers and regions." The announcement ends more than two days of disruption to services including Outlook, Teams and Copilot.
Microsoft again apologized to customers and partners for the disruption. The company said it was seeing broad recovery and stability across its services, and that it had restored services gradually, validating stability at each stage, which took longer but helped ensure a stable restoration. Microsoft said it will provide a full post-incident report once its review is complete, and administrators can follow further updates under incident number MO1550821 in the Microsoft 365 admin center.
On the cause, Microsoft had said earlier that the incident was a technical issue, not related to a cyberattack or to AI agents. The problem was introduced during an earlier network capacity upgrade and surfaced following a recent network change, with features tied to Exchange Online, its cloud-based email and scheduling hub, at the core of the disruption, while unconnected applications remained operational.
Reports of the outage began climbing at around 1725 GMT on November 12, and Downdetector received reports from users in more than 70 countries and territories. More than 430 million people use Microsoft 365 apps, according to Microsoft's website, and business and government email and collaboration were widely disrupted over the two days, including municipal email in Southern California cities such as Rancho Palos Verdes and Barstow, which later recovered. Microsoft had said on November 13 that there was no timetable yet for full restoration; the November 14 announcement closes the incident, with only the full post-incident report still to come.
(Source: Microsoft)
Source: Microsoft
Published by GSM · USA (original Chinese edition)
Photo: 图：微软位于华盛顿州 Redmond 的总部园区17号楼入口（资料图）。Derrick Coetzee 摄，作者已将作品释入公共领域，经 Wikimedia Commons。 / Photo: The entrance of Building 17 on Microsoft's headquarters campus in Redmond, Washington (file photo). Photo by Derrick Coetzee, released into the public domain, via Wikimedia Commons.
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