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Choose the mobile app. Open a browser on your computer and go to portal.office.com.Sign in to your Office 365 for business account.

使用双重验证时，Microsoft Authenticator 应用可帮助你登录帐户。

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Get answers to all of your Microsoft Word questions. Find Word help, how-to articles, training videos, tutorials, and more.

Get help and training for Office products, such as Word, Excel, PowerPoint, and Outlook. Learn tips and tricks, troubleshoot issues, and access online resources.

Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

“我的帐户”门户通过设置和管理安全信息、管理连接的组织和设备或查看组织使用数据的方式，帮助你管理工作或学校帐户。. 若要登录到工作或学校帐户，请转到 myaccount.microsoft.com 或选择下面的“ 登录 ”。 登录. 另请参阅. 详细了解工作或学校帐户. 登录到 Windows. 登录 Office

The new Microsoft Edge helps you browse, search, shop online, and more. Like all modern browsers, Microsoft Edge lets you collect and store specific data on your device, like cookies, and lets you send information to us, like browsing history, to make the experience as rich, fast, and personal as possible.

To add another account to OneDrive on your computer. If you already have a personal OneDrive account set up, you can only add work or school accounts.