Learn how to download new text-to-speech language and voices in Windows for Immersive Reader, Read Mode, and Read Aloud.

如果已获得 Skype for Business 管理员授权，则可以迅速开始创建自己的持久聊天室。 下面将介绍如何创建、管理和禁用聊天室。

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Want to add a padlock to your email messages? You can use S/MIME in Outlook on the web to increase the security of messages. A digitally encrypted message can only be opened by recipients who have the correct key.

Find out how to boot into safe mode in Windows 10 from Settings and the sign-in screen, as well as how to exit safe mode.

Find Microsoft Excel help and learning resources. Explore how-to articles, guides, training videos, and tips to efficiently use Excel.

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

Learn how to get Windows Media Player 12 for Windows 10, Windows 8.1, and Windows 7.

Find out how to view your system information on Microsoft Support, including hardware and operating system details.

Find out how to access and modify cellular settings on your Windows PC with this official guide from Microsoft Support.