向 Microsoft 帐户兑换礼品卡或代码 - Microsoft 支持
了解如何兑换礼品卡、代码或 Office 产品密钥，以及如何在 Microsoft Store 在线商店、Windows 或 Xbox 上花费余额。
Applies To:
Microsoft account dashboard
验证码问题疑难解答 - Microsoft 支持
你的备用电子邮件地址是否以 @outlook.com、@hotmail.com、@live.com 或 @msn.com 结尾？ 如果是，则你正使用一个 Microsoft 帐户验证另一个 Microsoft 帐户。
Applies To:
Microsoft account dashboard
How to help keep your Microsoft account safe and secure
Learn how to keep your Microsoft account safe, including making a strong password, identifying safe emails, and reviewing account activity.
Applies To:
Microsoft account dashboard
重置忘记的 Microsoft 帐户密码 - Microsoft 支持
了解如何重置更改 Microsoft 帐户密码。 获取有关忘记 Microsoft 帐户密码的帮助。
Applies To:
Microsoft account dashboard
Join a Teams meeting - Microsoft Support
Join Teams meeting with ease using our step-by-step guide. Learn how to join a Teams meeting via your calendar, a dial-in number, or on the web.
Applies To:
Microsoft Teams
Microsoft Teams help & learning
Get help with your questions about Microsoft Teams from our how-to articles, tutorials, and support content.
Cellular settings in Windows - Microsoft Support
Find out how to access and modify cellular settings on your Windows PC with this official guide from Microsoft Support.
回想你在 Outlook 中发送的电子邮件 - Microsoft 支持
邮件召回在选择“发送 ”后可用，并且仅当你和收件人 在同一组织中具有Microsoft 365 或Microsoft Exchange 电子邮件帐户时才可用。无法召回发送到 Hotmail、Gmail 或 live.com 帐户或从其发送的邮件。
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Outlook on the web, Outlook.com, New Outlook for Windows
Download Microsoft Authenticator - Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
使用 Outlook 发送大文件 - Microsoft 支持
使用文件共享、云服务或其他解决方案发送大型文件，以便在 Outlook 中解决文件大小限制。
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016