Around 2 p.m., over 15,000 users reported outages across Microsoft 365, Outlook and Teams. In a social media post, Microsoft said it was investigating.

The company blamed "service infrastructure in the North America region" that wasn't "processing traffic as expected" for users of its hugely popular services

The dilemma for millions of Windows users now is that Microsoft also warns that “while you might choose ultimately to uninstall a security update, you should know the risks associated with the uninstallation.” These include vulnerability to attacks, compromised personal information and potential data loss, Microsoft says.

Microsoft is giving its Paint and Notepad apps on Windows new AI capabilities for editing text and making digital illustrations. The updates are currently rolling out to Windows Insiders in the Windows 11 Canary and Dev channels,

Microsoft Outage Status Update: Problem Identified Amid 451 4.3.2 Temporary Server Issue, Estimated Time Here

January has become a nightmare for millions of Windows users, as Microsoft’s latest January update creates a surprising raft of issues. We have seen multiple emergency updates. But serious problems remain. And there’s no firm timeline on fixes.

Microsoft’s first Windows 11 security update of 2026 broke shutdowns and some Remote Desktop sign-ins. Microsoft has released emergency out-of-band fixes via Windows Update, including KB5077744 and KB5077797.