Describes the new and improved features of Microsoft Windows Installer 4.5. The article also discusses the issues that are addressed from earlier versions of Windows Installer.

即使已开启其他防火墙，开启 Microsoft Defender 防火墙也很重要。 它保护你免遭未经授权的访问。 若要打开或关闭 Microsoft Defender 防火墙，请执行以下操作：

Windows 11, version 22H2; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

在 Microsoft Edge 中大声朗读. 大声朗读是一种简单但功能强大的工具，可直觉地读取网页文本。 若要开始，请从沉浸式阅读器工具栏中选择“大声朗读”。开始大声朗读后，页面顶部将显示一个功能区工具栏。

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Focus is a new feature in Windows 11 that helps you minimize distractions. To help you stay on track, it integrates with the Clock app with features like a focus timer and music integration.

Windows 11, version 22H2; July 25, 2024—KB5040527 (OS Builds 22621.3958 and 22631.3958) Preview; July 9, 2024—KB5040442 (OS Builds 22621.3880 and 22631.3880)

Microsoft Teams updates automatically, but you can start an update whenever you want.

Here are answers to some common questions about codecs. What's a codec? A codec compresses or decompresses media files such as songs or videos.

To mark a message as important or urgent in Microsoft Teams, select Set Delivery Options ! beneath the compose box and then click Important or Urgent.