查找 Microsoft 帐户用户名 - Microsoft 支持
如果知道用户名和密码但已停止工作，请阅读 我的用户名和密码已停止工作。. 如果你忘记了 Microsoft 帐户用户名或电子邮件地址， 并且 之前已在 Microsoft 帐户上设置了其他 安全信息 ，请按照以下步骤操作。
Link your social network accounts to Xbox | Xbox Support
Stay connected to your friends across social networks while gaming on Windows 10/11.
Use Magnifier to make things on the screen easier to see
Learn how to make items on the screen appear larger by using Magnifier in Windows.
External or guest sharing in OneDrive, SharePoint, and Lists
Sharing OneDrive files, SharePoint files, or Lists with other people allows you to securely collaborate with people outside your organization.
Applies To:
Microsoft Lists, OneDrive (work or school), OneDrive for Mac, OneDrive for Windows
新 Outlook 和经典 Outlook for Windows 功能比较 - Microsoft 支持
上次更新时间：2024 年 7 月 17 日. 新的 Outlook for Windows 提供最新功能、Microsoft Copilot 辅助功能，以及新的现代简化设计，可帮助你连接、组织和完成工作。
Applies To:
Outlook for Microsoft 365, New Outlook for Windows
Create an email message in Outlook - Microsoft Support
Create an email message in new Outlook. From within new Outlook, off the ribbon, select New > Mail, or press Ctrl + N. If multiple email accounts are configured in new Outlook, From:<accountname> appears at the top of the new message.To change the account you want the message sent from, select the dropdown and choose another account.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Office 365 Small Business, Microsoft 365 admin, Outlook on the web, Outlook.com, New Outlook for Windows
下载Microsoft Authenticator - Microsoft 支持
重要: Microsoft不再支持超过一年的 Authenticator 版本。始终使设备保持最新状态。
Renew Microsoft 365 for personal or family use
Learn how to renew your Microsoft 365 Family or Microsoft 365 Personal subscription online or from a retail store.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, PowerPoint for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, Microsoft 365 for home, Office for business, Office activation
Open and use a shared mailbox in Outlook Web App
Learn how to open a shared mailbox in the Outlook Web App. Shared mailboxes let a group of users view and send email, and share a calendar, from a common mailbox.
Applies To:
Outlook Web App
Change notification settings in Windows - Microsoft Support
Learn how to change app notifications, banners, and sound settings in Windows.