Microsoft 365, Outlook, and Microsoft Teams are down — here's when you'll be able to use them again

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Microsoft is rolling out a fix for an issue that took down Microsoft 365, Outlook, and Microsoft Teams.

Outlook Client Hero
Microsoft Outlook is one of many services experiencing outages today. (Image credit: Future)

What you need to know

  • Microsoft 365, Microsoft Teams, Outlook, and the Microsoft Store are all down right now for many.
  • Outage reports started rising around 8 AM ET and rose dramatically by 12 PM ET.
  • Microsoft identified the issue that caused the outage and is rolling out a fix, but many can still not access Microsoft services as of 12:40 PM ET.

Microsoft 365, Outlook, and Microsoft Teams users were in for a rude awakening to start the week. Those services all top the charts at DownDetector, which indicates service outages by collecting user reports. Outages started earlier today around 8 AM ET but spiked closer to midday.

Some reports of issues occured earlier in the day around 4 AM ET, which is roughly when Microsoft started investigating the issue, but issues appear to have caused more problems starting around 8 AM ET. There's a good chance the spike in outage reports aligned with people signing on for work to start the week.

"We're investigating an issue impacting users attempting to access Exchange Online or functionality within Microsoft Teams calendar," said Microsoft on its official Microsoft 365 Status account on X (formerly Twitter). That comment came at 9:06 AM ET after outage reports started to rise.

Microsoft later mitigated the issue as it identified a fix. The tech giant was able to determine the cause of the outages and is rolling out a fix for the issue. That rollout is gradual, however, as outage reports continue to come in at DownDetector.

Microsoft shared that the patch had reached "approximately 98% of the affeccted environments" as of 11:51 PM ET.

This is an ongoing story, and we will update this piece as more information becomes available.

When will Microsoft 365 be back online?

Microsoft has identified the issue causing the outages of Microsoft 365, Outlook, and Microsoft Teams. The company started rolling a fix out hours ago (as of 1:05 PM ET). But "targeted restarts are progressing slower than anticipated for the majority of affected users," according to Microsoft.

The latest update from Microsfot is that it will share an ETA for resolution as soon as possible. That message came at 12:25 PM ET.

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Sean Endicott
Sean Endicott
News Writer and apps editor

Sean Endicott is a tech journalist at Windows Central, specializing in Windows, Microsoft software, AI, and PCs. He's covered major launches, from Windows 10 and 11 to the rise of AI tools like ChatGPT. Sean's journey began with the Lumia 740, leading to strong ties with app developers. Outside writing, he coaches American football, utilizing Microsoft services to manage his team. He studied broadcast journalism at Nottingham Trent University and is active on X @SeanEndicott_ and Threads @sean_endicott_.