Microsoft faced a major global outage on November 12, with users across 74 countries and territories reporting problems accessing its services within roughly
an hour. Outlook, Microsoft 365, Teams, OneDrive and Copilot were among the affected platforms. The disruption left thousands of people struggling to send emails, join meetings or access their work files.
The outage quickly became a headache for businesses, schools and government organisations that depend on Microsoft’s services. According to Downdetector, Outlook alone recorded nearly 1.3 lakh outage reports at its peak. Microsoft acknowledged the problem and began emergency recovery efforts, but restoring normal services proved harder than expected.
Microsoft Service Health Status Page at 10:00AM IST
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What went wrong with Microsoft’s servers?
Microsoft initially detected unusually high pressure on parts of its infrastructure. Further investigation revealed that several servers had unexpectedly become unavailable, leaving the remaining systems struggling to handle connections.
The company explained that the problem was not caused by a sudden increase in user traffic. With fewer servers available, existing traffic was enough to overwhelm parts of the network.
Microsoft said, “We’re aggressively pursuing all pathways to reduce impact.”
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Why is Microsoft struggling to restore services?
Microsoft paused deployments, redirected traffic and began restarting affected servers. Some systems returned to service, but recovery remained slow. Reports indicated that certain servers became unresponsive again when connections resumed.
The company later reported limited recovery as more servers were restored. A complete restoration timeline had not been confirmed.
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Businesses and AI services feel the impact
The disruption reached beyond Microsoft’s own applications. Reuters reported that connectors used by OpenAI and Anthropic were affected, causing problems for users connecting AI tools to Microsoft services.
Electric truck manufacturer Workhorse Group even postponed its quarterly results announcement, citing the outage.
Microsoft’s service health page continued to show service degradation on November 13. For companies waiting to access their inboxes, the familiar advice to restart everything was becoming painfully ironic. Microsoft itself was restarting servers.
