Roaming of the work account's device certificate is not supported. The certificate, issued by "MS-Organization-Access", is stored in the Personal (MY) certificate store of the current user and on the local machine.

Email与 Microsoft 帐户关联的地址和电话号码称为别名，它们使用相同的联系人、在线存储、订阅和帐户设置。 可以使用任何别名登录到 Microsoft 服务或 Windows 和 Xbox 设备，并且可以选择其中任何一个来发送和接收电子邮件。

Check your computer's date settings. Excel uses your computer's date system. If a cell's date isn't entered using the same date system, Excel won't recognize it as a true date.

注意: 注册 Microsoft Teams（免费版）与使用工作帐户（通常由 IT 管理员分配为具有使用 Teams 许可证的组织的一部分）或学校帐户（作为学校或教育机构的一部分）不同。详细了解 Microsoft Teams（工作或学校）。

了解如何创建 Xbox 档案。 从“主页”屏幕中： 如果未登录，选择“新增”。 如果已登录，按 Xbox 按钮 打开导航页，选择“配置文件和系统” > “添加或切换” > “新增”。; 输入 Microsoft 帐户的电子邮件地址并按照屏幕上的说明执行操作。

Select Review activity to check for any unusual sign-in attempts on the Recent activity page.If you see account activity that you're sure wasn't yours, let us know and we can help secure your account—if it's in the Unusual activity section, you can expand the activity and select This wasn't me.If it's in the Recent activity section, you can expand the activity and select Secure your account.

In the upper left corner of the window, select the app launcher > All apps > SharePoint Tip: If you don't see the SharePoint app under All apps, use the Search box near the top of the window to search for SharePoint.

Where can I find my BitLocker recovery key? BitLocker likely ensured that a recovery key was safely backed up prior to activating protection. There are several places that your recovery key may be, depending on the choice that was made when activating BitLocker:

Note: If you receive a prompt asking whether to allow the app to access your camera (iOS) or to allow the app to take pictures and record video (Android). select Allow so the authenticator app can access your camera to take a picture of the QR code in the next step.If you don't allow the camera, you can still set up the authenticator app as described in Manually add an account to the app.

附註: 您可以使用您擁有的電子郵件位址做為 Microsoft 帳戶，或在註冊時選擇 [取得新的電子郵件位址] 或 [改為使用您的電子郵件] 來建立新位址。