Learn how to tell if your Office software is genuine. To help determine if your Microsoft software is genuine, go to our How to Tell site for more information. Here you'll learn about authentic packaging, including what to look for with product key labels, and Certificate of Authenticity (COA), how to report counterfeit software, and find out what your shopping and licensing options are.

Learn how to download and customize Windows Media Player. Get troubleshooting help and how-to information for Windows Media Player 12.

Find out more about Xbox digital codes and gift cards, and how to troubleshoot issues redeeming content.

了解如何管理 Microsoft 帐户安全信息和排查验证码问题。

When you schedule a Microsoft Teams meeting from Outlook, a dial-in number and conference ID are included automatically. If you have PSTN conferencing enabled in Teams, they are also included.

当此功能处于打开状态且弹出窗口被阻止时，Edge 将在 Web 浏览器的地址栏中显示以下图像。 如何在 Microsoft Edge 中允许特定 URL 的弹出窗口

A Microsoft Exchange account is a work or school email account. The organization that gave you the Exchange email account is running a Microsoft Exchange Server, or is using Microsoft 365 which uses Exchange Server to provide email.

Collections in Microsoft Edge helps you keep track of your ideas on the web, whether you're shopping, planning a trip, collecting notes for research or lesson plans, or just want to pick up where you left off the last time you were browsing the internet.

扩展或加载项是自定义浏览器体验并为你提供更多控制权的简单工具。 下面介绍如何在 Microsoft Edge 中添加、关闭和删除扩展或加载项 。

Learn how to recover a hacked or compromised account, what to do next, and how to prevent your account from being compromised in the future.