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 ...

Send S/MIME or Microsoft Purview encrypted emails in Outlook using a work or school account with a qualified Microsoft 365 subscription.

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

準備好安裝 Microsoft 365或 Office 2024了嗎？ 開始之前，請確保您的 PC 或 Mac 符合 系統需求。 如果您已兌換產品金鑰、重新安裝應用程式，或您已透過公司或學校指派授權，您可以略過並移至「登入」區段 ，以下載並安裝 Microsoft 365 或 Office。 不過，如果這是您 第一次 安裝 Microsoft 365或 Office，您可能 ...

重要: 對 Office 2016 和 Office 2019 的支援 已於 2025 年 10 月 14 日結束，不會有擴充功能，也不會有擴充安全性更新。 您的所有 Office 2016 和 Office 2019 應用程式都會繼續運作。 不過，您將暴露在嚴重且可能有害的安全性風險中。

Tip: If information has already been removed from the website but is still showing up in Bing search results, you can use the Content Removal Tool to submit a page removal or outdated cache removal request. To learn more about the Content Removal Tool, go to Bing Webmaster Help & How-To.

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

If you have tasks in Microsoft Excel that you do repeatedly, you can record a macro to automate those tasks. A macro is an action or a set of actions that you can run as many times as you want. When you create a macro, you are recording your mouse clicks and keystrokes. After you create a macro, you can edit it to make minor changes to the way it works. Suppose that every month, you create a ...

可以轻松累积Microsoft奖励积分，并赚取丰厚的奖励，如礼品卡、电影、游戏、非营利性捐赠等。 使用Microsoft帐户保持登录状态，你将因执行已执行的作而获得积分。 以下是获得Microsoft Rewards 积分的一些方法： 使用 必应 搜索*。 通过 Windows 10/11 设备上任务栏上的搜索框搜索 Web。 从移动设备、Xbox One ...