Windows 11 / Intelligence workspace
Snapshot · 2026-10-25
IssuesKB5079473Issue detail
Windows update intelligence

Microsoft account sign-ins may fail in Teams Free and other apps

Sign-ins using consumer Microsoft accounts may fail in Microsoft Teams Free and other applications.

ResolvedC3 · Microsoft confirmedMajor impactSnapshot checked 2026-10-25

Does this match your environment?

Windows scope
24H2 / 25H2
Architecture
Unknown — not universal
App / driver
Microsoft account sign-in / Teams Free
Conditions
Consumer Microsoft accounts only; organizations signing in with Microsoft Entra ID are not affected.

A matching version is only a starting point. This page does not diagnose an individual device.

Evidence & current resolution

Microsoft lists this scope as resolved on 2026-03-21. Resolving update: KB5085516.

Microsoft official evidence
Evidence ID
official-msa-signin-failures
Source groups
1 · official publication
Evidence basis
Manually reviewed public source; no independent device test
Evidence permalink

Suggest a correction

Private review notes are stored in your workspace. They do not change published evidence or contact an external editor.

Recorded timeline

2026-03-10

Originating update released

KB5079473
2026-03-21

Official resolution recorded

KB5085516

2026-10-25

Snapshot reviewed

Added to this curated collection. Earlier acknowledgement time was not independently captured.

Follow official guidance for your environment. We do not provide automatic rollback or security-disable actions.