获取 Windows 操作系统的官方支持和帮助信息，以及如何使用 Windows 的指南。

Use multiple desktops in Windows to organize projects, or quickly switch between desktops before a meeting.

Hotmail 现在是 Outlook.com。 了解如何登录以访问 Outlook.com、Hotmail、Live 或 MSN 电子邮件帐户。

Learn how to get started with PowerPoint for the web from Office.com and create presentations online.

Pin, remove, and customize in Quick access. By default, File Explorer opens to Quick Access. You can set a folder to show up in Quick access so it'll be easy to find.

Hotmail 現在為 Outlook.com。 瞭解如何登入以存取您的 Outlook.com、Hotmail、Live 或 MSN 電子郵件帳戶。

Get help with signing in, changing passwords, creating and sending mail, deleting mail, creating folders, and more in Outlook on the web.

Learn how to block someone or add email addresses to the safe senders list in Outlook on the web.

Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.

使用 Windows 设置应用更改桌面背景和颜色。