Windows 11 update KB5079473 is causing sign-in failures for Microsoft Teams Free, OneDrive, Edge, Excel, Word, and Microsoft 365 Copilot.
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Windows 11 just broke Microsoft accounts for some PCs
Some PCs can't sign into OneDrive, Excel, and other Microsoft services.
Microsoft has confirmed that the March KB5079473 update breaks Microsoft account sign-ins in Teams, OneDrive, Edge, and other apps on Windows 11.
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