Learn about the message "Wi-Fi isn't secure" that appears in Windows when you're connected to a Wi-Fi network that's not secure.

Microsoft is retiring the Windows legacy inbox Troubleshooters, such as Keyboard troubleshooter and Speech troubleshooter, and the Microsoft Support Diagnostic Tool (MSDT) that runs them.

注意: 默认情况下，所有搜索都是 and 搜索。 必须将 not 和 or 运算符大写。 否则，必应将忽略它们作为停止字词，这些字词和数字是常见的单词和数字，为加快全文搜索速度而省略。

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Learn how to receive a refund or exchange for items purchased from Microsoft.

Active content is additional functionality in a file or program, such as macros, add-ins, or data connections. This article lists types of active content that can be blocked by settings in Trust Center and which, when present in a document, cause display of the Message Bar when you open your file.

Notes: Some Media Feature Packs for early versions of Windows 10 are available for download at Media Feature Pack for N versions of Windows 10. For Windows 10, version 1909 and later, the Media Feature Pack is only available for download as an Optional Feature.

Learn more about updates for Windows 10, version 2004, including improvement and fixes, any known issues, and how to get the update.

获取 Microsoft Edge 的帮助和支持。 查找 Microsoft Edge 支持内容、操作方法文章、教程等。

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