Important: You don't need to remove old security information unless there is an account security risk (e.g. someone else has access to your old mailbox).

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。

Get help with your questions about Microsoft Teams from our how-to articles, tutorials, and support content.

登录到 microsoft365.com 以查看Microsoft 365 工作或学校帐户。 登录. 安装和管理应用。 在 Office 应用 卡上，选择“ 管理”，然后选择“ 安装 ”以安装或重新安装最新的桌面应用或其他应用，例如 Project 或 Visio 。(只要管理员 为你分配了许可证 并授予你自安装的权限，安装选项就可用。

This article explains how to renew your Microsoft 365 subscription for personal or family use and what you can do after you renew.It also provides detailed troubleshooting help.. If you need help managing your payment, see Add, update, or remove credit cards and other ways to pay.. If you want to check prices before you renew, see Choose the right Microsoft 365 for you.

Notes: If you have existing lists of safe names and addresses, you can move that information into Outlook. Click Import from File and browse for the list file that you want. To create a file that uses your current list, click Export to File and then specify where you want the new file saved.. To change a name on the list, click the name that you want to change and then click Edit.

Keep in touch and stay productive with Teams and Microsoft 365, even when you're working remotely. Learn more

To resize desktop icons, right-click (or press and hold) the desktop, point to View, then select Large icons, Medium icons, or Small icons.

Windows Live Hotmail Hotmail is a free e-mail service that is provided by Microsoft. Support is available by e-mail. For more information, visit the following Web site:

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.