Unable to sign in

George Pappas 0 Reputation points
2026-04-14T11:24:38.79+00:00

Keep getting repeated requests to change password.

Outlook | Web | Outlook.com | Email

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  1. AI answer

    2026-04-14T11:24:55.8766667+00:00

    Repeated prompts to change or enter a password usually indicate a sign-in or authentication problem with the Microsoft account.

    Use these steps:

    1. Run the Microsoft sign-in helper
      • Go to the Sign-in Helper and enter the email address or phone number used for Outlook.com.
      • The tool checks for common account issues and provides specific steps to fix them.
      • Link: Sign-in Helper.
    2. If you see Error 400 or similar when signing in
      • Error 400 can appear after too many sign-in attempts or if there’s an issue with the browser/app or network.
      • Try these in order:
        • At the sign-in page, choose Other ways to sign in and use another method (PIN, security key, Authenticator approval, or code to email/phone) if already configured.
        • Update or reinstall the app/browser being used to sign in.
        • Try signing in from a different device (another PC, phone, or tablet).
        • Switch networks (for example, from Wi‑Fi to mobile data or a different Wi‑Fi).
    3. If two-step verification (MFA) is enabled on a work/school account
      • Repeated attempts can trigger Microsoft Entra multifactor authentication protections and temporarily block sign-in.
      • Wait before trying again or use a different MFA method if available.
      • If suspicious activity is suspected or the block persists, contact the organization’s IT administrator and ask them to check Microsoft Entra sign-in logs.
    4. If Outlook mobile is involved
      • Make sure the latest Outlook app version is installed from the app store.
      • If using a Microsoft personal account and sign-in still fails, use the sign-in helper tool above.
      • For work/school accounts, if self-service password reset is allowed, use the Work or school password reset page; otherwise contact the IT admin.

    If the problem continues even after these steps, avoid repeated sign-in attempts for a period (for example, 24 hours) to prevent further temporary blocks, then try again using an alternate sign-in method or device.

    References:

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  2. Anonymous
    2026-04-15T00:20:28.83+00:00

    Hi George Pappas

    I understand how frustrating it is to keep being asked to change your password and still not be able to sign in.

    To avoid repeating the same steps with Q&A Assist reply, could you please let us know whether you already tried those suggestions, and if so, what happened?

    Also, to narrow this down properly, could you please confirm these:

    • Does this happen only on the Outlook.com website, or also on another browser/device?
    • When you try to sign in, are you being blocked completely, or does Microsoft allow you to sign in briefly and then immediately ask you to change the password again?
    • After you change the password, do you also see any specific error?

    In the meantime, you can try to clear cached passwords stored in Windows Credential Manager:

    1. Close Outlook completely.
    2. Open the Control Panel > Credential Manager > Windows Credentials
    3. Look for any entries related to Outlook, MicrosoftOffice, or your email address.
    4. Click on each relevant entry to expand it, and then click Remove. Confirm the removal when prompted.
    5. Restart Outlook and enter your password again when prompted. Be sure to check the box for "Remember my credentials" or "Remember password" to prevent this from happening again.

    Looking forward to your reply so I can assist you further. Thank you for your time and understanding.

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