Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.

在 Android 设备上安装 Authenticator Google Play 商店在中国不可用，因此只能从以下商店下载Microsoft Authenticator： 联想 Oppo – 搜索要从 Oppo 存储区下载Microsoft Authenticator。 Samsung

Learn how to change your Xbox gamertag on the web, Xbox console, or Windows device while adhering to Xbox Community Standards.

How to protect an Excel file using a password to prevent unwanted access to your data.

它提供多个关键功能，以确保数据保持安全，并在数据被勒索软件加密或阻止时可以还原。 “勒索软件数据恢复”部分与 Microsoft OneDrive 集成。

Find and download free templates to create documents like calendars, business cards, letters, greeting cards, brochures, newsletters, or resumes.

安裝 Microsoft Defender，保護您的Android、iPhone、Mac和 Windows 裝置免於受到威脅。 在您的裝置上下載 Microsoft Defender，方法如下： 掃描下列 QR 代碼 在 App Store 中搜尋 Microsoft Defender 與您的裝置共用，下列連結： 複製連結 我們鼓勵您為每個人至少在五部裝置上安裝 Microsoft Defender。 準備好試試看了嗎？

File sharing between your mobile device and your PC Now you can seamlessly share files between your PC and mobile device when they are connected via Phone Link and the Link to Windows app. What do I need to share files between my PC and mobile device? A PC running Windows 10 (with the May 2019 update or later) or Windows 11 Android device running Android 9.0 or later Link to Windows app ...

Windows 防火墙通过筛选网络流量和阻止未经授权的访问来帮助保护设备。 它基于各种属性（如 IP 地址、端口或程序路径）限制或允许流量，从而降低了网络安全威胁的风险。 可以使用 Windows 安全中心 应用查看和管理 Windows 防火墙的状态。 可以打开或关闭防火墙，并访问不同网络类型的高级设置 ...

Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.