Windows 11 account bug
A new Windows 11 bug is breaking apps that depend on Microsoft account logins — users report OneDrive and Edge disruptions and admins are hunting workarounds as the issue ripples through enterprises. The fault exposes dependency risks when OS updates affect cloud‑authentication flows. (techradar.com)
Microsoft has logged the issue as a known problem in the March 10, 2026 cumulative update KB5079473 (OS builds 26200.8037 and 26100.8037), warning that sign‑in with Microsoft accounts can fail in consumer apps such as OneDrive, Microsoft Edge, Microsoft Teams (Free), Word, Excel and Microsoft 365 Copilot. (support.microsoft.com) Affected machines often see a misleading offline prompt reading "You'll need the Internet for this. It doesn't look like you're connected to the Internet," and some reports cite error code 0x800704cf appearing despite an active network connection. (pcworld.com) Microsoft attributes the problem to devices entering a specific network connectivity state and recommends restarting the device while it remains connected to the internet as an initial workaround, while also confirming a formal fix is being developed. (techradar.com) Enterprise authentication through Entra ID (formerly Azure AD) is reported not to be affected, which limits direct impact on managed Entra‑joined fleets even as consumer Microsoft Account (MSA) logins used by shadow‑IT or personal profiles remain vulnerable. (howtogeek.com) System administrators have responded by pausing March updates for vulnerable rings, rolling back KB5079473 via Settings or WinRE on symptomatic devices, and using update‑management tools (WSUS/Windows Update for Business) to place devices on a compatibility hold until Microsoft issues the patch. (trichromic.co.uk) Pressure to install KB5079473 has been high because the March cumulative also included multiple security fixes and quality changes (features like Sysmon integration and WebP support were shipped alongside fixes for actively exploited flaws), so IT teams must balance exposure to those vulnerabilities against the operational hit from the sign‑in regression. (tech2geek.net) Microsoft’s Windows release‑health dashboard is the designated status source and should reflect when the official remediation arrives; until then the restart workaround is the primary vendor‑recommended step and rollback or update rings remain the common admin mitigations. (status.cloud.microsoft)
