很多用户报错您输入的用户ID不存在^{(The user ID you entered does not exist)}。虽然此错误主要发生在尝试访问portal.office.com时，但也可能在访问与Microsoft关联的其他应用程序时发生。

您输入的用户 ID 不存在

The User ID you entered does not exist. Please check that you have typed your User ID correctly.

此错误的定义表明问题出在用户 ID 上，Microsoft已确认问题可能出在用户 ID 或密码上，问题可能出在服务器端或客户端应用程序上。

要解决错误您输入的用户 ID 不存在，请^{(The user ID you entered does not exist)}尝试以下解决方案：

1]再次验证凭据^(Verify)

您可能输入了错误的凭据。如果您输入了错误的凭据，那么无论您尝试什么，都将无法登录应用程序，因此，在继续任何进一步的解决方案之前，请检查凭据。

许多用户犯的一个常见错误是在输入用户名和密码时保持大写锁定。除此之外，您还可以检查键盘上的按键是否有缺陷。

2]尝试^(Try)登录与Microsoft关联的其他应用程序^(Microsoft)

以与许多其他门户类似的方式，Microsoft使用单点登录系统。这意味着您将使用相同的 ID 登录Skype、Hotmail、Outlook、Microsoft Office和您的 Windows 10 计算机。因此，要找出原因，请尝试将其登录到与Microsoft关联的另一个应用程序中。例如。如果问题出在 portal.office.com，请尝试登录Skype for desktop 应用程序。这将有助于确定问题出在服务器还是客户端。

3]向预期的电子邮件 ID发送测试电子邮件^(Send)

要检查电子邮件ID是否存在，请尝试向与您无法登录的用户帐户关联的电子邮件ID发送电子邮件。从发件人端检查您是否能够发送电子邮件以及是否通过通过。这将有助于隔离帐户问题。

4]重置您的Microsoft密码

在早期的解决方案中，我们将用户 ID 视为问题的中心，但是，您也可以考虑通过微软的网站^{(Microsoft’s website)}重置密码。

5]检查^(Check)Microsoft服务器的问题

虽然Microsoft服务器很少发生故障，但如果发生故障，无论您尝试什么，您都将无法访问这些网站。可以在此处检查^(here)网站^{(status of the website)}portal.office.com的状态。

The user ID you entered does not exist - Microsoft account error

A lot of users have reported the error The user ID you entered does not exist. While this error mostly occurs while trying to access portal.office.com, it may occur while accessing other applications associated with Microsoft.

The user ID you entered does not exist

The User ID you entered does not exist. Please check that you have typed your User ID correctly.

The definition of this error states that the problem is with the user ID, Microsoft has confirmed that the issue could be with either the user ID or the password and the problem could be from the server-side or with the client application.

To resolve the error The user ID you entered does not exist try the following solutions:

1] Verify the credentials once again

It may be possible that you are entering the wrong credentials. If you are entering the wrong credentials then no matter what you try you will not be able to log into the application, thus, before proceeding with any further solution please check through the credentials.

A common mistake many users make is to keep the caps lock on while entering the username and password. Other than this, you can also check for defective keys on your keyboard.

2] Try logging in to other applications associated with Microsoft

In a manner similar to many other portals, Microsoft uses a single-sign-on system. This means you would be using the same ID to log onto Skype, Hotmail, Outlook, Microsoft Office, and your Windows 10 computer. So to isolate the cause try logging it in into another application associated with Microsoft. Eg. if the issue was with portal.office.com, try logging in to the Skype for desktop application. This will help in isolating whether the issue is with the server or the client.

3] Send a test email to the intended email ID

To check whether the email ID exists or not try sending an email to the email ID associated with the user account from which you are unable to log in. Check from the sender’s end if you are able to send the email or not and whether it passes through. This will help in isolating issues with the account.

4] Reset your Microsoft password

In the earlier solutions, we were focusing on the user ID as the center of the problem, however, you can also consider resetting the password through Microsoft’s website.

5] Check for issues with the Microsoft server

While it is rare for the Microsoft server to fail, if it does, you will not be able to access the websites no matter what you try. The status of the website portal.office.com could be checked here.

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