Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...

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Windows 安全中心应用的“病毒和威胁防护”页面旨在帮助你保护设备免受各种威胁（如病毒、恶意软件和勒索软件）的侵害。 该页提供对多个功能和设置的访问权限，以确保全面保护，分为以下部分： 当前威胁：此部分显示设备上当前发现的任何威胁、上次运行扫描的时间、花费的时间以及扫描的 ...

Phishing (pronounced: fishing) is an attack that attempts to steal your money, or your identity, by getting you to reveal personal information -- such as credit card numbers, bank information, or passwords -- on websites that pretend to be legitimate. Cybercriminals typically pretend to be reputable companies, friends, or acquaintances in a fake message, which contains a link to a phishing ...

Windows 更新助手会在设备上下载并安装功能更新。 功能更新提供新功能，有助于保护系统安全。 下载更新助手 后，你将自动 ...

Learn more about the advanced security features for Outlook.com that come with an Office 365 Home or Office 365 Personal subscription.

Windows 10 のサポートは、2025 年 10 月に終了します 2025 年 10 月 14 日以降、Windows Update を介した Windows 10 の無料ソフトウェア更新プログラム、テクニカル サポート、セキュリティ修正プログラムが、Microsoft から提供されなくなります。 お使いの PC は引き続き機能しますが、Windows 11 に移行する ...

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欢迎使用Windows 11！ 了解新功能、升级常见问题解答、设备生命周期和支持选项。

Learn how to locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.