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Microsoft 365 and Accounts

Microsoft 365 sign-in or password problem

Resolve repeated password prompts, lockouts, and MFA loops in Outlook and Teams.

Help center
  1. Sign in at office.com in a private browser window. If that works, the problem is the desktop app, not your account.
  2. Confirm the time and date on your phone are automatic — a wrong clock breaks authenticator codes.
  3. In Outlook, choose File, Office Account, Sign out, then sign in again.
  4. If you get an approval prompt you did not request, deny it and open a ticket immediately.

Never send your password to us or to anyone. We can reset access without it.

Updated 2026-08-31

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Open a ticket and include the steps you already tried.

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