Microsoft says it is "deeply sorry" for a global outage of services such as Outlook and Teams.
The collapse has disrupted healthcare services, delayed corporate earnings reports and left schools struggling to communicate.
The company reports "broad recovery" of services and rules out malicious cyber or AI as the cause.
Microsoft has apologised for a global outage that disrupted public services and businesses around the world, and has reported a "broad recovery" for Outlook email and other services.
The company ruled out any malicious "cyber or AI" activity as the cause of the outage, which affected several Microsoft products and disrupted healthcare services, delayed corporate earnings reports and left schools struggling to communicate.
"We are deeply sorry for the disruption this incident has caused our customers and partners," Microsoft said on X, adding full services were still being restored after the outage started on Thursday.
"We are seeing broad recovery and stability across our services. This was a technical issue not related to cyber or AI / agents."
Microsoft attributed the disruption to "elevated load" on its infrastructure following a network capacity upgrade.
The disruption knocked out Microsoft products in 74 countries and territories, affecting users across the Americas and parts of Europe, Australia, Asia and Africa, according to the outage tracker Downdetector.
