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Outlook | Windows | New Outlook for Windows | For business
Using New Outlook on Windows for professional communication and productivity
Very sorry to hear about your issues with your Outlook. I will be happy to help you out today.
This error means verification is needed to complete the login process. It is a security measure to protect your account.
Please try following actions:
-Check for a notification on your phone or other registered device and try logging in through a browser
Log in to your Microsoft account online (account.microsoft.com) and check your security settings. You might need to update your security information, add a new verification method, or review recent activity.
outdated or corrupted cached credentials can cause this issue. Try clearing your browser's cache and cookies, or clearing the cached credentials in your operating system's credential manager.
If MFA is enabled, need to provide the second factor of authentication (code from an authenticator app, a text message, or a security key) to log in.
If you need further assistance or if any of these steps are unclear, please let me know.