Managing personal Outlook.com account settings, security, and privacy
Removing the password sign-in option on a Microsoft account requires using a supported passwordless method from Microsoft, not a third‑party authenticator like Duo.
Key points based on the described behavior:
- Passwordless requires Microsoft-supported methods
- To go passwordless, the account must be set up with one of these methods:
- Microsoft Authenticator app
- Outlook for Android sign-in approvals
- Windows Hello
- Physical security keys
- SMS or email codes
- Any authentication app can be used for two-step verification, but the passwordless account feature specifically expects Microsoft’s own supported methods (for example, Microsoft Authenticator or Outlook for Android), not Duo.
- To go passwordless, the account must be set up with one of these methods:
- Why the password option is not removed
- The flow described (being prompted to add an authenticator, adding Duo, and being returned to the same screen with the password still present) matches the requirement that the system is looking for a Microsoft Authenticator/Outlook-based passwordless method.
- Because Duo is not recognized as the passwordless method for Microsoft accounts, the “Passwordless account” toggle cannot complete, so the password sign-in option remains.
- How to successfully remove the password
- Install and configure a supported passwordless method:
- Download and install the Microsoft Authenticator app or Outlook for Android.
- Open the app and add the Microsoft account following the prompts.
- Sign in to the Additional security options page for the Microsoft account.
- Under Passwordless account, select Turn on.
- Follow the prompts and approve the request in Microsoft Authenticator (or Outlook for Android).
- After this is completed, the account becomes passwordless and the password sign-in option is removed.
- Install and configure a supported passwordless method:
- If passwordless is already on but issues persist
- If passwordless was turned on and needs to be reverted, it can be turned off from the same Additional security options page by selecting Turn off under Passwordless account, then following the prompts to add a password back.
- Mitigating repeated “too many wrong passwords” lockouts
- Once passwordless is enabled with Microsoft Authenticator/Outlook, sign-in can be done via app approvals, Windows Hello, security keys, or SMS/email codes, reducing reliance on the password and mitigating the impact of repeated password-guess attempts.
References:
- How to go passwordless with your Microsoft account
- How to help keep your Microsoft account secure
- How to use two-step verification with your Microsoft account
- Removing a sign-in verification method
- How to access Outlook.com when traveling
- Set up security questions as your verification method
- Why can't just use my password anymore to log into my email. been going on for a while.... - Microsoft Q&A