Set up your Microsoft 365 sign-in for multi-factor authentication
By setting up MFA, you add an extra layer of security to your Microsoft 365 account sign-in. For example, you first enter your password and, when prompted, you also type a dynamically generated verification code provided by an authenticator app or sent to your phone.
Applies To:
Office for business, Microsoft 365 admin
What is: Multifactor Authentication - Microsoft Support
That's why almost all online services - banks, social media, shopping and yes, Microsoft 365 too - have added a way for your accounts to be more secure. You may hear it called "Two-Step Verification" or "Multifactor Authentication" but the good ones all operate off the same principle.
激活 Office - Microsoft 支持
激活 Microsoft 365 或非订阅版本的 Office. 当启动未激活的 Microsoft 365 应用时，系统将提示登录到 Microsoft 365。. 请务必使用用于购买或订阅 Microsoft 365 的 Microsoft 帐户或工作或学校帐户进行登录。. 注意: 如果新设备上预安装了 Microsoft 365，请参阅 激活新 Windows 设备上 ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Office.com, Project for Office 365
Microsoft Edge help & learning
Get help and support for Microsoft Edge. Find Microsoft Edge support content, how-to articles, tutorials, and more.
Account & profile | Xbox Support
Manage account. Change the email address or phone number for your Microsoft account. Add or remove an Xbox profile. Delete your Microsoft account security info. Check your Microsoft account balance. Earn points with Microsoft Rewards. Update your Microsoft account if you’re moving to a new country or region. How to delete a child account.
Téléchargez et installez ou réinstallez Microsoft 365 ou Office 2021 ...
Découvrez comment installer, réinstaller ou activer Microsoft 365 ou Office 2019 sur un PC ou Mac.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com
Upgrade Windows Home to Windows Pro - Microsoft Support
Learn how to upgrade from Windows 10 Home to Windows 10 Pro or Windows 11 Home to Windows 11 Pro, including how to use a valid product key or the Microsoft Store.
登入 SharePoint - Microsoft 支援服務
登入 SharePoint. SharePoint是您透過網頁瀏覽器連線到的瀏覽器應用程式，如下所示：. 移至 office.com ，並登入您的公司或學校帳戶。. 在視窗左上角，選取應用程式啟動器 > 所有應用程式 > SharePoint. 提示 ：如果您在 [ 所有應用程式] 底下沒有看到SharePoint 應用程式 ...
Applies To:
SharePoint in Microsoft 365
获取 Windows 10 移动版 Fall Creators Update - Microsoft 支持
获取 Windows 10 移动版 Fall Creators Update. 当更新可用时，Windows 10 移动版将自动下载并安装更新。. Windows 10 Fall Creators Update 包括用于 Windows 10 手机的其他功能和改进。. 若要手动检查更新，请在“开始”菜单 上轻扫到“所有应用”列表，然后依次选择“设置 ...
How to use two-step verification with your Microsoft account
Two-step verification (sometimes called multi-factor authentication) helps protect you by making it more difficult for someone else to sign in to your Microsoft account. It uses two different forms of identity: your password, and a contact method (also known as security info).