Hello, could you please provide a screenshot related to the problem so I can confirm the issue? Thank you.
error 401 on a windows 11 lap top
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(156.8, 93%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESC%3C/text%3E%3C/svg%3E)
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Reputation points
error 401 on windows 11 laptop cannot open mail xxxxxxxxxxx
Windows for home | Other | Email and communications
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TaoLi 119.7K Reputation points Independent Advisor2026-10-31T15:12:02.7533333+00:00 -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(249.60000000000002, 77%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERR%3C/text%3E%3C/svg%3E)
Ron Ryan Arambulo 330 Reputation points Independent Advisor2026-10-31T15:41:51.4966667+00:00 Thanks for posting here in the Microsoft Community. I understand you are experiencing Outlook Error 401, which is an authentication failure that occurs when the mail server rejects your saved or entered credentials. To help isolate the issue, could you please let us know if you are using a personal account such as @outlook.com or @gmail.com or a business domain? Additionally, have you already tried verifying your password on a web browser or clearing your saved credentials via the Windows Credential Manager?