Advanced email security. As a Microsoft 365 subscriber, you get enhanced security tools that help protect your inbox from phishing and malware.

Learn how to report a concern or contact Bing for any issues or feedback related to Bing Maps, Bing Search, Bing Ads, and more.

Certificate authority (CA) A certificate authority is an entity similar to a notary public.It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.

若要将其关闭，请将设置切换为“关闭”。 关闭 Microsoft Defender 防火墙可能会使设备（以及网络，如果有）更容易受到未经授权的访问。

你可以随时取消 Xbox 订阅。 关闭定期计费将停止订阅的未来扣费，并使你在订阅到期之前使用其权益。 你也可能有资格立即取消并获得退款；但不是所有订阅费用都能退款。

Check the Xbox services, games, and apps for any service outages.

SharePoint Server Organizations can deploy and manage SharePoint Server on-premises or with an Office 365 Enterprise subscription to take advantage of all the latest features.And it offers additional features and capabilities, such as modern site pages, modern web parts and authoring, modern lists and libraries, modern search, integration with PowerApps, Power BI and MS Flow, and SharePoint ...

Find and replace basic text. In the upper-right corner of the document, in the search box , type the word or phrase that you want to find, and Word will highlight all instances of the word or phrase throughout the document.. To replace found text: Select the magnifying glass, and then select Replace.

对 Internet Explorer 的支持已于 2022 年 6 月 15 日结束 Internet Explorer 11 已通过某些版本的 Microsoft Edge 更新永久禁用Windows 10。

在 “选择默认签名”下，设置以下选项。. 在 “电子邮件帐户 ”下拉框中，选择要与签名关联的电子邮件帐户。 可为每个邮件帐户设置多个签名。 可以将签名自动添加到所有新邮件。 在 “新建邮件 ”下拉框中转到 ，然后选择其中一个签名。 如果不想自动向新邮件添加签名，请选择“ (无) ”。