Note: If a document has been shared with you for review, you may not be able to turn off Track Changes.If you want to edit the document without tracking changes, you’ll need to either save a copy or ask the person who sent it to you to share it again with review mode turned off.

Need more help? Want to ask or answer questions about Microsoft Loop? Chat with others who are using Loop? Visit the Microsoft Answers community for Microsoft Loop here!. Contact Support For help with your Microsoft account and subscriptions, visit Account & Billing Help. For technical support, go to Contact Microsoft Support, enter your problem and select Get Help.

In Teams, you can call in to a meeting by going to the Calendar on the left side of the app, selecting the meeting you want to join, and dialing the phone number provided in the meeting details.. If you’re not a member of Teams, you can still join a Teams meeting from an invitation you received in Outlook or another email application.

在激活向导中，单击“我希望通过 Internet 激活软件”，然后按照提示进行操作。 需要激活 Office 才能确保你的 Office 程序完全正常工作。 如果安装时未激活，可稍后从 Office 应用程序中通过单击“文件”>“帮助”>“激活产品密钥”来激活它。 有关详细信息，请参阅激活 Office 2010 程序。

A team is a group of people gathered to get something big done in your organization. Sometimes it’s your whole organization.. Teams are made up of channels, which are the conversations you have with your teammates.Each channel is dedicated to a specific topic, department, or project. For example, the Mark 8 Project team has General, Design, Digital Assets Web, Go to Market Plan, and Research ...

Alerts are notifications of changes to content on a site that you receive as email messages or text messages to your mobile phone, depending on how your site is configured.

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

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。

You can use the Outlook Address Book—a collection of address books or address lists created from your contact folders—to look up and select names, email addresses, and distribution lists when you address email messages.

Add participants to an existing group chat. You may only add external access participants to existing or ongoing chats that already include at least one external access participant.